Home / 124,780.50-187,283.07-84,702.42

Finding the Fourth Proportional to 124,780.50, 187,283.07 and 84,702.42

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Solution

The fourth proportional to 124,780.50, 187,283.07 and 84,702.42 is: 127,129.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,780.50 : 187,283.07 = 84,702.42 : x
  2. Step 2: Convert to fraction form
    124,780.50/187,283.07 = 84,702.42/x
  3. Step 3: Cross multiply
    124,780.50x = 187,283.07 × 84,702.42
  4. Step 4: Simplify right side
    124,780.50x = 15,863,329,254.03
  5. Step 5: Solve for x
    x = 15,863,329,254.03/124,780.50
  6. Step 6: Final answer
    x = 127,129.87

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1.5x scale

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.