Home / 127,239.40-190,834.49-38,472.11

Finding the Fourth Proportional to 127,239.40, 190,834.49 and 38,472.11

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Solution

The fourth proportional to 127,239.40, 190,834.49 and 38,472.11 is: 57,700.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,239.40 : 190,834.49 = 38,472.11 : x
  2. Step 2: Convert to fraction form
    127,239.40/190,834.49 = 38,472.11/x
  3. Step 3: Cross multiply
    127,239.40x = 190,834.49 × 38,472.11
  4. Step 4: Simplify right side
    127,239.40x = 7,341,804,633.08
  5. Step 5: Solve for x
    x = 7,341,804,633.08/127,239.40
  6. Step 6: Final answer
    x = 57,700.72

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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.