Home / 156,899.06-216,522.11-85,279.23

Finding the Fourth Proportional to 156,899.06, 216,522.11 and 85,279.23

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Solution

The fourth proportional to 156,899.06, 216,522.11 and 85,279.23 is: 117,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,899.06 : 216,522.11 = 85,279.23 : x
  2. Step 2: Convert to fraction form
    156,899.06/216,522.11 = 85,279.23/x
  3. Step 3: Cross multiply
    156,899.06x = 216,522.11 × 85,279.23
  4. Step 4: Simplify right side
    156,899.06x = 18,464,839,031.97
  5. Step 5: Solve for x
    x = 18,464,839,031.97/156,899.06
  6. Step 6: Final answer
    x = 117,686.10

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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.