Home / 127,447.13-191,158.34-38,701.40

Finding the Fourth Proportional to 127,447.13, 191,158.34 and 38,701.40

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Solution

The fourth proportional to 127,447.13, 191,158.34 and 38,701.40 is: 58,048.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,447.13 : 191,158.34 = 38,701.40 : x
  2. Step 2: Convert to fraction form
    127,447.13/191,158.34 = 38,701.40/x
  3. Step 3: Cross multiply
    127,447.13x = 191,158.34 × 38,701.40
  4. Step 4: Simplify right side
    127,447.13x = 7,398,094,230.38
  5. Step 5: Solve for x
    x = 7,398,094,230.38/127,447.13
  6. Step 6: Final answer
    x = 58,048.34

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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.