Home / 155,736.60-233,864.10-85,666.20

Finding the Fourth Proportional to 155,736.60, 233,864.10 and 85,666.20

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Solution

The fourth proportional to 155,736.60, 233,864.10 and 85,666.20 is: 128,641.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,736.60 : 233,864.10 = 85,666.20 : x
  2. Step 2: Convert to fraction form
    155,736.60/233,864.10 = 85,666.20/x
  3. Step 3: Cross multiply
    155,736.60x = 233,864.10 × 85,666.20
  4. Step 4: Simplify right side
    155,736.60x = 20,034,248,763.42
  5. Step 5: Solve for x
    x = 20,034,248,763.42/155,736.60
  6. Step 6: Final answer
    x = 128,641.88

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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.