Home / 103,433.81-142,740.56-57,497.77

Finding the Fourth Proportional to 103,433.81, 142,740.56 and 57,497.77

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Solution

The fourth proportional to 103,433.81, 142,740.56 and 57,497.77 is: 79,347.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,433.81 : 142,740.56 = 57,497.77 : x
  2. Step 2: Convert to fraction form
    103,433.81/142,740.56 = 57,497.77/x
  3. Step 3: Cross multiply
    103,433.81x = 142,740.56 × 57,497.77
  4. Step 4: Simplify right side
    103,433.81x = 8,207,263,244.21
  5. Step 5: Solve for x
    x = 8,207,263,244.21/103,433.81
  6. Step 6: Final answer
    x = 79,347.97

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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.