Home / 105,763.15-145,943.85-60,432.13

Finding the Fourth Proportional to 105,763.15, 145,943.85 and 60,432.13

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Solution

The fourth proportional to 105,763.15, 145,943.85 and 60,432.13 is: 83,391.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,763.15 : 145,943.85 = 60,432.13 : x
  2. Step 2: Convert to fraction form
    105,763.15/145,943.85 = 60,432.13/x
  3. Step 3: Cross multiply
    105,763.15x = 145,943.85 × 60,432.13
  4. Step 4: Simplify right side
    105,763.15x = 8,819,697,715.90
  5. Step 5: Solve for x
    x = 8,819,697,715.90/105,763.15
  6. Step 6: Final answer
    x = 83,391.03

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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.