Home / 156,719.49-216,266.85-85,097.91

Finding the Fourth Proportional to 156,719.49, 216,266.85 and 85,097.91

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Solution

The fourth proportional to 156,719.49, 216,266.85 and 85,097.91 is: 117,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,719.49 : 216,266.85 = 85,097.91 : x
  2. Step 2: Convert to fraction form
    156,719.49/216,266.85 = 85,097.91/x
  3. Step 3: Cross multiply
    156,719.49x = 216,266.85 × 85,097.91
  4. Step 4: Simplify right side
    156,719.49x = 18,403,856,937.28
  5. Step 5: Solve for x
    x = 18,403,856,937.28/156,719.49
  6. Step 6: Final answer
    x = 117,431.83

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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.