Home / 127,555.28-191,360.60-38,806.48

Finding the Fourth Proportional to 127,555.28, 191,360.60 and 38,806.48

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Solution

The fourth proportional to 127,555.28, 191,360.60 and 38,806.48 is: 58,218.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,555.28 : 191,360.60 = 38,806.48 : x
  2. Step 2: Convert to fraction form
    127,555.28/191,360.60 = 38,806.48/x
  3. Step 3: Cross multiply
    127,555.28x = 191,360.60 × 38,806.48
  4. Step 4: Simplify right side
    127,555.28x = 7,426,031,237.72
  5. Step 5: Solve for x
    x = 7,426,031,237.72/127,555.28
  6. Step 6: Final answer
    x = 58,218.14

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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.