Home / 103,710.06-143,117.52-57,769.38

Finding the Fourth Proportional to 103,710.06, 143,117.52 and 57,769.38

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Solution

The fourth proportional to 103,710.06, 143,117.52 and 57,769.38 is: 79,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,710.06 : 143,117.52 = 57,769.38 : x
  2. Step 2: Convert to fraction form
    103,710.06/143,117.52 = 57,769.38/x
  3. Step 3: Cross multiply
    103,710.06x = 143,117.52 × 57,769.38
  4. Step 4: Simplify right side
    103,710.06x = 8,267,810,397.54
  5. Step 5: Solve for x
    x = 8,267,810,397.54/103,710.06
  6. Step 6: Final answer
    x = 79,720.43

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1.5x scale

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.