Home / 127,102.76-190,655.49-38,357.05

Finding the Fourth Proportional to 127,102.76, 190,655.49 and 38,357.05

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Solution

The fourth proportional to 127,102.76, 190,655.49 and 38,357.05 is: 57,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,102.76 : 190,655.49 = 38,357.05 : x
  2. Step 2: Convert to fraction form
    127,102.76/190,655.49 = 38,357.05/x
  3. Step 3: Cross multiply
    127,102.76x = 190,655.49 × 38,357.05
  4. Step 4: Simplify right side
    127,102.76x = 7,312,982,162.70
  5. Step 5: Solve for x
    x = 7,312,982,162.70/127,102.76
  6. Step 6: Final answer
    x = 57,535.98

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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.