Home / 156,895.29-216,517.68-85,275.27

Finding the Fourth Proportional to 156,895.29, 216,517.68 and 85,275.27

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Solution

The fourth proportional to 156,895.29, 216,517.68 and 85,275.27 is: 117,681.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,895.29 : 216,517.68 = 85,275.27 : x
  2. Step 2: Convert to fraction form
    156,895.29/216,517.68 = 85,275.27/x
  3. Step 3: Cross multiply
    156,895.29x = 216,517.68 × 85,275.27
  4. Step 4: Simplify right side
    156,895.29x = 18,463,603,621.77
  5. Step 5: Solve for x
    x = 18,463,603,621.77/156,895.29
  6. Step 6: Final answer
    x = 117,681.06

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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.