Home / 83,092.40-124,638.60-78,718.40

Finding the Fourth Proportional to 83,092.40, 124,638.60 and 78,718.40

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Solution

The fourth proportional to 83,092.40, 124,638.60 and 78,718.40 is: 118,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,092.40 : 124,638.60 = 78,718.40 : x
  2. Step 2: Convert to fraction form
    83,092.40/124,638.60 = 78,718.40/x
  3. Step 3: Cross multiply
    83,092.40x = 124,638.60 × 78,718.40
  4. Step 4: Simplify right side
    83,092.40x = 9,811,351,170.24
  5. Step 5: Solve for x
    x = 9,811,351,170.24/83,092.40
  6. Step 6: Final answer
    x = 118,077.60

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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.