Home / 156,223.57-215,587.45-84,601.95

Finding the Fourth Proportional to 156,223.57, 215,587.45 and 84,601.95

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Solution

The fourth proportional to 156,223.57, 215,587.45 and 84,601.95 is: 116,750.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,223.57 : 215,587.45 = 84,601.95 : x
  2. Step 2: Convert to fraction form
    156,223.57/215,587.45 = 84,601.95/x
  3. Step 3: Cross multiply
    156,223.57x = 215,587.45 × 84,601.95
  4. Step 4: Simplify right side
    156,223.57x = 18,239,118,242.52
  5. Step 5: Solve for x
    x = 18,239,118,242.52/156,223.57
  6. Step 6: Final answer
    x = 116,750.11

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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.