Home / 156,165.32-215,509.25-84,545.53

Finding the Fourth Proportional to 156,165.32, 215,509.25 and 84,545.53

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Solution

The fourth proportional to 156,165.32, 215,509.25 and 84,545.53 is: 116,673.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,165.32 : 215,509.25 = 84,545.53 : x
  2. Step 2: Convert to fraction form
    156,165.32/215,509.25 = 84,545.53/x
  3. Step 3: Cross multiply
    156,165.32x = 215,509.25 × 84,545.53
  4. Step 4: Simplify right side
    156,165.32x = 18,220,343,761.15
  5. Step 5: Solve for x
    x = 18,220,343,761.15/156,165.32
  6. Step 6: Final answer
    x = 116,673.43

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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.