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Finding the Fourth Proportional to 188,124.05, 282,282.90 and 124,987.64

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Solution

The fourth proportional to 188,124.05, 282,282.90 and 124,987.64 is: 187,545.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,124.05 : 282,282.90 = 124,987.64 : x
  2. Step 2: Convert to fraction form
    188,124.05/282,282.90 = 124,987.64/x
  3. Step 3: Cross multiply
    188,124.05x = 282,282.90 × 124,987.64
  4. Step 4: Simplify right side
    188,124.05x = 35,281,872,071.94
  5. Step 5: Solve for x
    x = 35,281,872,071.94/188,124.05
  6. Step 6: Final answer
    x = 187,545.79

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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.