Home / 156,947.88-216,592.32-85,332.72

Finding the Fourth Proportional to 156,947.88, 216,592.32 and 85,332.72

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Solution

The fourth proportional to 156,947.88, 216,592.32 and 85,332.72 is: 117,761.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,947.88 : 216,592.32 = 85,332.72 : x
  2. Step 2: Convert to fraction form
    156,947.88/216,592.32 = 85,332.72/x
  3. Step 3: Cross multiply
    156,947.88x = 216,592.32 × 85,332.72
  4. Step 4: Simplify right side
    156,947.88x = 18,482,411,796.71
  5. Step 5: Solve for x
    x = 18,482,411,796.71/156,947.88
  6. Step 6: Final answer
    x = 117,761.46

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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.