Home / 156,645.14-216,164.52-85,023.63

Finding the Fourth Proportional to 156,645.14, 216,164.52 and 85,023.63

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Solution

The fourth proportional to 156,645.14, 216,164.52 and 85,023.63 is: 117,329.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,645.14 : 216,164.52 = 85,023.63 : x
  2. Step 2: Convert to fraction form
    156,645.14/216,164.52 = 85,023.63/x
  3. Step 3: Cross multiply
    156,645.14x = 216,164.52 × 85,023.63
  4. Step 4: Simplify right side
    156,645.14x = 18,379,092,167.61
  5. Step 5: Solve for x
    x = 18,379,092,167.61/156,645.14
  6. Step 6: Final answer
    x = 117,329.48

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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.