Home / 185,665.09-278,411.23-67,331.65

Finding the Fourth Proportional to 185,665.09, 278,411.23 and 67,331.65

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Solution

The fourth proportional to 185,665.09, 278,411.23 and 67,331.65 is: 100,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,665.09 : 278,411.23 = 67,331.65 : x
  2. Step 2: Convert to fraction form
    185,665.09/278,411.23 = 67,331.65/x
  3. Step 3: Cross multiply
    185,665.09x = 278,411.23 × 67,331.65
  4. Step 4: Simplify right side
    185,665.09x = 18,745,885,934.04
  5. Step 5: Solve for x
    x = 18,745,885,934.04/185,665.09
  6. Step 6: Final answer
    x = 100,966.13

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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.