Home / 147,939.70-221,909.55-124,320.10

Finding the Fourth Proportional to 147,939.70, 221,909.55 and 124,320.10

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Solution

The fourth proportional to 147,939.70, 221,909.55 and 124,320.10 is: 186,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,939.70 : 221,909.55 = 124,320.10 : x
  2. Step 2: Convert to fraction form
    147,939.70/221,909.55 = 124,320.10/x
  3. Step 3: Cross multiply
    147,939.70x = 221,909.55 × 124,320.10
  4. Step 4: Simplify right side
    147,939.70x = 27,587,817,446.96
  5. Step 5: Solve for x
    x = 27,587,817,446.96/147,939.70
  6. Step 6: Final answer
    x = 186,480.15

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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.