Home / 156,150.20-215,479.12-91,610.46

Finding the Fourth Proportional to 156,150.20, 215,479.12 and 91,610.46

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Solution

The fourth proportional to 156,150.20, 215,479.12 and 91,610.46 is: 126,417.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,150.20 : 215,479.12 = 91,610.46 : x
  2. Step 2: Convert to fraction form
    156,150.20/215,479.12 = 91,610.46/x
  3. Step 3: Cross multiply
    156,150.20x = 215,479.12 × 91,610.46
  4. Step 4: Simplify right side
    156,150.20x = 19,740,141,303.60
  5. Step 5: Solve for x
    x = 19,740,141,303.60/156,150.20
  6. Step 6: Final answer
    x = 126,417.65

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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.