Home / 410,427.86-615,617.18-126,121.10

Finding the Fourth Proportional to 410,427.86, 615,617.18 and 126,121.10

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Solution

The fourth proportional to 410,427.86, 615,617.18 and 126,121.10 is: 189,174.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,427.86 : 615,617.18 = 126,121.10 : x
  2. Step 2: Convert to fraction form
    410,427.86/615,617.18 = 126,121.10/x
  3. Step 3: Cross multiply
    410,427.86x = 615,617.18 × 126,121.10
  4. Step 4: Simplify right side
    410,427.86x = 77,642,315,920.50
  5. Step 5: Solve for x
    x = 77,642,315,920.50/410,427.86
  6. Step 6: Final answer
    x = 189,174.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.