Home / 151,428.29-208,968.17-83,451.55

Finding the Fourth Proportional to 151,428.29, 208,968.17 and 83,451.55

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Solution

The fourth proportional to 151,428.29, 208,968.17 and 83,451.55 is: 115,161.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,428.29 : 208,968.17 = 83,451.55 : x
  2. Step 2: Convert to fraction form
    151,428.29/208,968.17 = 83,451.55/x
  3. Step 3: Cross multiply
    151,428.29x = 208,968.17 × 83,451.55
  4. Step 4: Simplify right side
    151,428.29x = 17,438,717,164.74
  5. Step 5: Solve for x
    x = 17,438,717,164.74/151,428.29
  6. Step 6: Final answer
    x = 115,161.55

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1.5x scale

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.