Home / 156,839.08-216,441.94-85,223.24

Finding the Fourth Proportional to 156,839.08, 216,441.94 and 85,223.24

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Solution

The fourth proportional to 156,839.08, 216,441.94 and 85,223.24 is: 117,610.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,839.08 : 216,441.94 = 85,223.24 : x
  2. Step 2: Convert to fraction form
    156,839.08/216,441.94 = 85,223.24/x
  3. Step 3: Cross multiply
    156,839.08x = 216,441.94 × 85,223.24
  4. Step 4: Simplify right side
    156,839.08x = 18,445,883,398.69
  5. Step 5: Solve for x
    x = 18,445,883,398.69/156,839.08
  6. Step 6: Final answer
    x = 117,610.25

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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.