Home / 128,046.27-176,702.82-70,685.56

Finding the Fourth Proportional to 128,046.27, 176,702.82 and 70,685.56

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Solution

The fourth proportional to 128,046.27, 176,702.82 and 70,685.56 is: 97,545.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,046.27 : 176,702.82 = 70,685.56 : x
  2. Step 2: Convert to fraction form
    128,046.27/176,702.82 = 70,685.56/x
  3. Step 3: Cross multiply
    128,046.27x = 176,702.82 × 70,685.56
  4. Step 4: Simplify right side
    128,046.27x = 12,490,337,741.09
  5. Step 5: Solve for x
    x = 12,490,337,741.09/128,046.27
  6. Step 6: Final answer
    x = 97,545.50

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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.