Home / 155,175.12-232,864.74-85,103.64

Finding the Fourth Proportional to 155,175.12, 232,864.74 and 85,103.64

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Solution

The fourth proportional to 155,175.12, 232,864.74 and 85,103.64 is: 127,711.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,175.12 : 232,864.74 = 85,103.64 : x
  2. Step 2: Convert to fraction form
    155,175.12/232,864.74 = 85,103.64/x
  3. Step 3: Cross multiply
    155,175.12x = 232,864.74 × 85,103.64
  4. Step 4: Simplify right side
    155,175.12x = 19,817,637,001.65
  5. Step 5: Solve for x
    x = 19,817,637,001.65/155,175.12
  6. Step 6: Final answer
    x = 127,711.43

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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.