Home / 103,600.20-142,980.94-58,280.10

Finding the Fourth Proportional to 103,600.20, 142,980.94 and 58,280.10

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Solution

The fourth proportional to 103,600.20, 142,980.94 and 58,280.10 is: 80,433.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,600.20 : 142,980.94 = 58,280.10 : x
  2. Step 2: Convert to fraction form
    103,600.20/142,980.94 = 58,280.10/x
  3. Step 3: Cross multiply
    103,600.20x = 142,980.94 × 58,280.10
  4. Step 4: Simplify right side
    103,600.20x = 8,332,943,481.29
  5. Step 5: Solve for x
    x = 8,332,943,481.29/103,600.20
  6. Step 6: Final answer
    x = 80,433.66

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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.