Home / 156,943.40-216,581.42-85,322.92

Finding the Fourth Proportional to 156,943.40, 216,581.42 and 85,322.92

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Solution

The fourth proportional to 156,943.40, 216,581.42 and 85,322.92 is: 117,745.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,943.40 : 216,581.42 = 85,322.92 : x
  2. Step 2: Convert to fraction form
    156,943.40/216,581.42 = 85,322.92/x
  3. Step 3: Cross multiply
    156,943.40x = 216,581.42 × 85,322.92
  4. Step 4: Simplify right side
    156,943.40x = 18,479,359,172.15
  5. Step 5: Solve for x
    x = 18,479,359,172.15/156,943.40
  6. Step 6: Final answer
    x = 117,745.37

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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.