Home / 156,941.06-216,576.10-85,322.88

Finding the Fourth Proportional to 156,941.06, 216,576.10 and 85,322.88

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Solution

The fourth proportional to 156,941.06, 216,576.10 and 85,322.88 is: 117,744.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,941.06 : 216,576.10 = 85,322.88 : x
  2. Step 2: Convert to fraction form
    156,941.06/216,576.10 = 85,322.88/x
  3. Step 3: Cross multiply
    156,941.06x = 216,576.10 × 85,322.88
  4. Step 4: Simplify right side
    156,941.06x = 18,478,896,591.17
  5. Step 5: Solve for x
    x = 18,478,896,591.17/156,941.06
  6. Step 6: Final answer
    x = 117,744.18

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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.