Home / 138,964.42-208,496.85-54,678.16

Finding the Fourth Proportional to 138,964.42, 208,496.85 and 54,678.16

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Solution

The fourth proportional to 138,964.42, 208,496.85 and 54,678.16 is: 82,037.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,964.42 : 208,496.85 = 54,678.16 : x
  2. Step 2: Convert to fraction form
    138,964.42/208,496.85 = 54,678.16/x
  3. Step 3: Cross multiply
    138,964.42x = 208,496.85 × 54,678.16
  4. Step 4: Simplify right side
    138,964.42x = 11,400,224,123.80
  5. Step 5: Solve for x
    x = 11,400,224,123.80/138,964.42
  6. Step 6: Final answer
    x = 82,037.00

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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.