Home / 187,990.12-282,001.80-53,055.39

Finding the Fourth Proportional to 187,990.12, 282,001.80 and 53,055.39

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Solution

The fourth proportional to 187,990.12, 282,001.80 and 53,055.39 is: 79,587.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,990.12 : 282,001.80 = 53,055.39 : x
  2. Step 2: Convert to fraction form
    187,990.12/282,001.80 = 53,055.39/x
  3. Step 3: Cross multiply
    187,990.12x = 282,001.80 × 53,055.39
  4. Step 4: Simplify right side
    187,990.12x = 14,961,715,479.70
  5. Step 5: Solve for x
    x = 14,961,715,479.70/187,990.12
  6. Step 6: Final answer
    x = 79,587.78

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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.