Home / 156,757.17-216,326.48-85,138.59

Finding the Fourth Proportional to 156,757.17, 216,326.48 and 85,138.59

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Solution

The fourth proportional to 156,757.17, 216,326.48 and 85,138.59 is: 117,492.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,757.17 : 216,326.48 = 85,138.59 : x
  2. Step 2: Convert to fraction form
    156,757.17/216,326.48 = 85,138.59/x
  3. Step 3: Cross multiply
    156,757.17x = 216,326.48 × 85,138.59
  4. Step 4: Simplify right side
    156,757.17x = 18,417,731,486.86
  5. Step 5: Solve for x
    x = 18,417,731,486.86/156,757.17
  6. Step 6: Final answer
    x = 117,492.12

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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.