Home / 156,947.40-216,586.94-85,326.92

Finding the Fourth Proportional to 156,947.40, 216,586.94 and 85,326.92

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Solution

The fourth proportional to 156,947.40, 216,586.94 and 85,326.92 is: 117,750.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,947.40 : 216,586.94 = 85,326.92 : x
  2. Step 2: Convert to fraction form
    156,947.40/216,586.94 = 85,326.92/x
  3. Step 3: Cross multiply
    156,947.40x = 216,586.94 × 85,326.92
  4. Step 4: Simplify right side
    156,947.40x = 18,480,696,502.42
  5. Step 5: Solve for x
    x = 18,480,696,502.42/156,947.40
  6. Step 6: Final answer
    x = 117,750.89

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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.