Home / 123,965,572.81-170,683,085.39-105,341,430.73

Finding the Fourth Proportional to 123,965,572.81, 170,683,085.39 and 105,341,430.73

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Solution

The fourth proportional to 123,965,572.81, 170,683,085.39 and 105,341,430.73 is: 145,040,272.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,965,572.81 : 170,683,085.39 = 105,341,430.73 : x
  2. Step 2: Convert to fraction form
    123,965,572.81/170,683,085.39 = 105,341,430.73/x
  3. Step 3: Cross multiply
    123,965,572.81x = 170,683,085.39 × 105,341,430.73
  4. Step 4: Simplify right side
    123,965,572.81x = 17,980,000,415,866,652
  5. Step 5: Solve for x
    x = 17,980,000,415,866,652/123,965,572.81
  6. Step 6: Final answer
    x = 145,040,272.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.