Home / 156,757.26-216,326.58-85,138.68

Finding the Fourth Proportional to 156,757.26, 216,326.58 and 85,138.68

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Solution

The fourth proportional to 156,757.26, 216,326.58 and 85,138.68 is: 117,492.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,757.26 : 216,326.58 = 85,138.68 : x
  2. Step 2: Convert to fraction form
    156,757.26/216,326.58 = 85,138.68/x
  3. Step 3: Cross multiply
    156,757.26x = 216,326.58 × 85,138.68
  4. Step 4: Simplify right side
    156,757.26x = 18,417,759,470.11
  5. Step 5: Solve for x
    x = 18,417,759,470.11/156,757.26
  6. Step 6: Final answer
    x = 117,492.23

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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.