Home / 127,631.21-191,475.36-38,891.66

Finding the Fourth Proportional to 127,631.21, 191,475.36 and 38,891.66

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Solution

The fourth proportional to 127,631.21, 191,475.36 and 38,891.66 is: 58,346.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,631.21 : 191,475.36 = 38,891.66 : x
  2. Step 2: Convert to fraction form
    127,631.21/191,475.36 = 38,891.66/x
  3. Step 3: Cross multiply
    127,631.21x = 191,475.36 × 38,891.66
  4. Step 4: Simplify right side
    127,631.21x = 7,446,793,642.12
  5. Step 5: Solve for x
    x = 7,446,793,642.12/127,631.21
  6. Step 6: Final answer
    x = 58,346.18

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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.