Home / 128,151.15-176,853.59-70,793.43

Finding the Fourth Proportional to 128,151.15, 176,853.59 and 70,793.43

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Solution

The fourth proportional to 128,151.15, 176,853.59 and 70,793.43 is: 97,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,151.15 : 176,853.59 = 70,793.43 : x
  2. Step 2: Convert to fraction form
    128,151.15/176,853.59 = 70,793.43/x
  3. Step 3: Cross multiply
    128,151.15x = 176,853.59 × 70,793.43
  4. Step 4: Simplify right side
    128,151.15x = 12,520,072,243.91
  5. Step 5: Solve for x
    x = 12,520,072,243.91/128,151.15
  6. Step 6: Final answer
    x = 97,697.70

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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.