Home / 151,425.74-208,958.89-86,881.29

Finding the Fourth Proportional to 151,425.74, 208,958.89 and 86,881.29

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Solution

The fourth proportional to 151,425.74, 208,958.89 and 86,881.29 is: 119,891.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,425.74 : 208,958.89 = 86,881.29 : x
  2. Step 2: Convert to fraction form
    151,425.74/208,958.89 = 86,881.29/x
  3. Step 3: Cross multiply
    151,425.74x = 208,958.89 × 86,881.29
  4. Step 4: Simplify right side
    151,425.74x = 18,154,617,920.17
  5. Step 5: Solve for x
    x = 18,154,617,920.17/151,425.74
  6. Step 6: Final answer
    x = 119,891.23

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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.