Home / 156,947.38-216,586.31-85,327.40

Finding the Fourth Proportional to 156,947.38, 216,586.31 and 85,327.40

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Solution

The fourth proportional to 156,947.38, 216,586.31 and 85,327.40 is: 117,751.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,947.38 : 216,586.31 = 85,327.40 : x
  2. Step 2: Convert to fraction form
    156,947.38/216,586.31 = 85,327.40/x
  3. Step 3: Cross multiply
    156,947.38x = 216,586.31 × 85,327.40
  4. Step 4: Simplify right side
    156,947.38x = 18,480,746,810.47
  5. Step 5: Solve for x
    x = 18,480,746,810.47/156,947.38
  6. Step 6: Final answer
    x = 117,751.23

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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.