Home / 156,154.45-215,493.21-84,534.47

Finding the Fourth Proportional to 156,154.45, 215,493.21 and 84,534.47

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Solution

The fourth proportional to 156,154.45, 215,493.21 and 84,534.47 is: 116,657.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,154.45 : 215,493.21 = 84,534.47 : x
  2. Step 2: Convert to fraction form
    156,154.45/215,493.21 = 84,534.47/x
  3. Step 3: Cross multiply
    156,154.45x = 215,493.21 × 84,534.47
  4. Step 4: Simplify right side
    156,154.45x = 18,216,604,295.95
  5. Step 5: Solve for x
    x = 18,216,604,295.95/156,154.45
  6. Step 6: Final answer
    x = 116,657.61

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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.