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Finding the Fourth Proportional to 153,886.62, 230,641.58 and 87,382.38

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Solution

The fourth proportional to 153,886.62, 230,641.58 and 87,382.38 is: 130,966.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,886.62 : 230,641.58 = 87,382.38 : x
  2. Step 2: Convert to fraction form
    153,886.62/230,641.58 = 87,382.38/x
  3. Step 3: Cross multiply
    153,886.62x = 230,641.58 × 87,382.38
  4. Step 4: Simplify right side
    153,886.62x = 20,154,010,187.36
  5. Step 5: Solve for x
    x = 20,154,010,187.36/153,886.62
  6. Step 6: Final answer
    x = 130,966.62

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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.