Home / 103,603.78-142,959.76-58,280.23

Finding the Fourth Proportional to 103,603.78, 142,959.76 and 58,280.23

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Solution

The fourth proportional to 103,603.78, 142,959.76 and 58,280.23 is: 80,419.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,603.78 : 142,959.76 = 58,280.23 : x
  2. Step 2: Convert to fraction form
    103,603.78/142,959.76 = 58,280.23/x
  3. Step 3: Cross multiply
    103,603.78x = 142,959.76 × 58,280.23
  4. Step 4: Simplify right side
    103,603.78x = 8,331,727,693.54
  5. Step 5: Solve for x
    x = 8,331,727,693.54/103,603.78
  6. Step 6: Final answer
    x = 80,419.15

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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.