Home / 156,627.28-216,147.72-85,008.16

Finding the Fourth Proportional to 156,627.28, 216,147.72 and 85,008.16

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Solution

The fourth proportional to 156,627.28, 216,147.72 and 85,008.16 is: 117,312.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,627.28 : 216,147.72 = 85,008.16 : x
  2. Step 2: Convert to fraction form
    156,627.28/216,147.72 = 85,008.16/x
  3. Step 3: Cross multiply
    156,627.28x = 216,147.72 × 85,008.16
  4. Step 4: Simplify right side
    156,627.28x = 18,374,319,965.40
  5. Step 5: Solve for x
    x = 18,374,319,965.40/156,627.28
  6. Step 6: Final answer
    x = 117,312.39

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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.