Home / 105,725.60-145,898.17-60,403.40

Finding the Fourth Proportional to 105,725.60, 145,898.17 and 60,403.40

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Solution

The fourth proportional to 105,725.60, 145,898.17 and 60,403.40 is: 83,354.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,725.60 : 145,898.17 = 60,403.40 : x
  2. Step 2: Convert to fraction form
    105,725.60/145,898.17 = 60,403.40/x
  3. Step 3: Cross multiply
    105,725.60x = 145,898.17 × 60,403.40
  4. Step 4: Simplify right side
    105,725.60x = 8,812,744,641.28
  5. Step 5: Solve for x
    x = 8,812,744,641.28/105,725.60
  6. Step 6: Final answer
    x = 83,354.88

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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.