Home / 156,789.65-216,370.10-85,168.17

Finding the Fourth Proportional to 156,789.65, 216,370.10 and 85,168.17

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Solution

The fourth proportional to 156,789.65, 216,370.10 and 85,168.17 is: 117,532.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,789.65 : 216,370.10 = 85,168.17 : x
  2. Step 2: Convert to fraction form
    156,789.65/216,370.10 = 85,168.17/x
  3. Step 3: Cross multiply
    156,789.65x = 216,370.10 × 85,168.17
  4. Step 4: Simplify right side
    156,789.65x = 18,427,845,672.64
  5. Step 5: Solve for x
    x = 18,427,845,672.64/156,789.65
  6. Step 6: Final answer
    x = 117,532.28

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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.