Home / 220,681.49-304,562.91-130,066.70

Finding the Fourth Proportional to 220,681.49, 304,562.91 and 130,066.70

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Solution

The fourth proportional to 220,681.49, 304,562.91 and 130,066.70 is: 179,505.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,681.49 : 304,562.91 = 130,066.70 : x
  2. Step 2: Convert to fraction form
    220,681.49/304,562.91 = 130,066.70/x
  3. Step 3: Cross multiply
    220,681.49x = 304,562.91 × 130,066.70
  4. Step 4: Simplify right side
    220,681.49x = 39,613,491,123.28
  5. Step 5: Solve for x
    x = 39,613,491,123.28/220,681.49
  6. Step 6: Final answer
    x = 179,505.28

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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.