Home / 151,227.45-208,681.65-87,569.28

Finding the Fourth Proportional to 151,227.45, 208,681.65 and 87,569.28

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Solution

The fourth proportional to 151,227.45, 208,681.65 and 87,569.28 is: 120,838.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,227.45 : 208,681.65 = 87,569.28 : x
  2. Step 2: Convert to fraction form
    151,227.45/208,681.65 = 87,569.28/x
  3. Step 3: Cross multiply
    151,227.45x = 208,681.65 × 87,569.28
  4. Step 4: Simplify right side
    151,227.45x = 18,274,101,839.71
  5. Step 5: Solve for x
    x = 18,274,101,839.71/151,227.45
  6. Step 6: Final answer
    x = 120,838.52

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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.