Home / 83,818.19-124,937.66-77,092.15

Finding the Fourth Proportional to 83,818.19, 124,937.66 and 77,092.15

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Solution

The fourth proportional to 83,818.19, 124,937.66 and 77,092.15 is: 114,911.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,818.19 : 124,937.66 = 77,092.15 : x
  2. Step 2: Convert to fraction form
    83,818.19/124,937.66 = 77,092.15/x
  3. Step 3: Cross multiply
    83,818.19x = 124,937.66 × 77,092.15
  4. Step 4: Simplify right side
    83,818.19x = 9,631,712,825.37
  5. Step 5: Solve for x
    x = 9,631,712,825.37/83,818.19
  6. Step 6: Final answer
    x = 114,911.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.