Home / 138,747.48-208,097.75-38,884.70

Finding the Fourth Proportional to 138,747.48, 208,097.75 and 38,884.70

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Solution

The fourth proportional to 138,747.48, 208,097.75 and 38,884.70 is: 58,320.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,747.48 : 208,097.75 = 38,884.70 : x
  2. Step 2: Convert to fraction form
    138,747.48/208,097.75 = 38,884.70/x
  3. Step 3: Cross multiply
    138,747.48x = 208,097.75 × 38,884.70
  4. Step 4: Simplify right side
    138,747.48x = 8,091,817,344.51
  5. Step 5: Solve for x
    x = 8,091,817,344.51/138,747.48
  6. Step 6: Final answer
    x = 58,320.46

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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.