Home / 151,432.04-208,976.51-91,003.61

Finding the Fourth Proportional to 151,432.04, 208,976.51 and 91,003.61

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Solution

The fourth proportional to 151,432.04, 208,976.51 and 91,003.61 is: 125,585.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,432.04 : 208,976.51 = 91,003.61 : x
  2. Step 2: Convert to fraction form
    151,432.04/208,976.51 = 91,003.61/x
  3. Step 3: Cross multiply
    151,432.04x = 208,976.51 × 91,003.61
  4. Step 4: Simplify right side
    151,432.04x = 19,017,616,815.20
  5. Step 5: Solve for x
    x = 19,017,616,815.20/151,432.04
  6. Step 6: Final answer
    x = 125,585.16

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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.