Home / 140,387.19-193,733.85-76,724.97

Finding the Fourth Proportional to 140,387.19, 193,733.85 and 76,724.97

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Solution

The fourth proportional to 140,387.19, 193,733.85 and 76,724.97 is: 105,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,387.19 : 193,733.85 = 76,724.97 : x
  2. Step 2: Convert to fraction form
    140,387.19/193,733.85 = 76,724.97/x
  3. Step 3: Cross multiply
    140,387.19x = 193,733.85 × 76,724.97
  4. Step 4: Simplify right side
    140,387.19x = 14,864,223,829.23
  5. Step 5: Solve for x
    x = 14,864,223,829.23/140,387.19
  6. Step 6: Final answer
    x = 105,880.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.