Home / 156,632.12-216,149.88-85,011.51

Finding the Fourth Proportional to 156,632.12, 216,149.88 and 85,011.51

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Solution

The fourth proportional to 156,632.12, 216,149.88 and 85,011.51 is: 117,314.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,632.12 : 216,149.88 = 85,011.51 : x
  2. Step 2: Convert to fraction form
    156,632.12/216,149.88 = 85,011.51/x
  3. Step 3: Cross multiply
    156,632.12x = 216,149.88 × 85,011.51
  4. Step 4: Simplify right side
    156,632.12x = 18,375,227,685.12
  5. Step 5: Solve for x
    x = 18,375,227,685.12/156,632.12
  6. Step 6: Final answer
    x = 117,314.56

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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.