Home / 207,001.38-310,622.55-87,049.65

Finding the Fourth Proportional to 207,001.38, 310,622.55 and 87,049.65

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Solution

The fourth proportional to 207,001.38, 310,622.55 and 87,049.65 is: 130,625.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,001.38 : 310,622.55 = 87,049.65 : x
  2. Step 2: Convert to fraction form
    207,001.38/310,622.55 = 87,049.65/x
  3. Step 3: Cross multiply
    207,001.38x = 310,622.55 × 87,049.65
  4. Step 4: Simplify right side
    207,001.38x = 27,039,584,259.61
  5. Step 5: Solve for x
    x = 27,039,584,259.61/207,001.38
  6. Step 6: Final answer
    x = 130,625.14

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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.