Home / 73,207.10-109,810.65-72,769.70

Finding the Fourth Proportional to 73,207.10, 109,810.65 and 72,769.70

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Solution

The fourth proportional to 73,207.10, 109,810.65 and 72,769.70 is: 109,154.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,207.10 : 109,810.65 = 72,769.70 : x
  2. Step 2: Convert to fraction form
    73,207.10/109,810.65 = 72,769.70/x
  3. Step 3: Cross multiply
    73,207.10x = 109,810.65 × 72,769.70
  4. Step 4: Simplify right side
    73,207.10x = 7,990,888,057.31
  5. Step 5: Solve for x
    x = 7,990,888,057.31/73,207.10
  6. Step 6: Final answer
    x = 109,154.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.