Home / 156,633.53-216,154.46-85,013.55

Finding the Fourth Proportional to 156,633.53, 216,154.46 and 85,013.55

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Solution

The fourth proportional to 156,633.53, 216,154.46 and 85,013.55 is: 117,318.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,633.53 : 216,154.46 = 85,013.55 : x
  2. Step 2: Convert to fraction form
    156,633.53/216,154.46 = 85,013.55/x
  3. Step 3: Cross multiply
    156,633.53x = 216,154.46 × 85,013.55
  4. Step 4: Simplify right side
    156,633.53x = 18,376,058,205.47
  5. Step 5: Solve for x
    x = 18,376,058,205.47/156,633.53
  6. Step 6: Final answer
    x = 117,318.81

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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.