Home / 156,237.49-215,607.90-84,617.61

Finding the Fourth Proportional to 156,237.49, 215,607.90 and 84,617.61

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Solution

The fourth proportional to 156,237.49, 215,607.90 and 84,617.61 is: 116,772.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,237.49 : 215,607.90 = 84,617.61 : x
  2. Step 2: Convert to fraction form
    156,237.49/215,607.90 = 84,617.61/x
  3. Step 3: Cross multiply
    156,237.49x = 215,607.90 × 84,617.61
  4. Step 4: Simplify right side
    156,237.49x = 18,244,225,195.12
  5. Step 5: Solve for x
    x = 18,244,225,195.12/156,237.49
  6. Step 6: Final answer
    x = 116,772.39

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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.