Home / 124,975.80-187,463.70-72,520.20

Finding the Fourth Proportional to 124,975.80, 187,463.70 and 72,520.20

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Solution

The fourth proportional to 124,975.80, 187,463.70 and 72,520.20 is: 108,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,975.80 : 187,463.70 = 72,520.20 : x
  2. Step 2: Convert to fraction form
    124,975.80/187,463.70 = 72,520.20/x
  3. Step 3: Cross multiply
    124,975.80x = 187,463.70 × 72,520.20
  4. Step 4: Simplify right side
    124,975.80x = 13,594,905,016.74
  5. Step 5: Solve for x
    x = 13,594,905,016.74/124,975.80
  6. Step 6: Final answer
    x = 108,780.30

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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.