Home / 127,743.71-191,638.08-52,821.88

Finding the Fourth Proportional to 127,743.71, 191,638.08 and 52,821.88

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Solution

The fourth proportional to 127,743.71, 191,638.08 and 52,821.88 is: 79,242.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,743.71 : 191,638.08 = 52,821.88 : x
  2. Step 2: Convert to fraction form
    127,743.71/191,638.08 = 52,821.88/x
  3. Step 3: Cross multiply
    127,743.71x = 191,638.08 × 52,821.88
  4. Step 4: Simplify right side
    127,743.71x = 10,122,683,186.10
  5. Step 5: Solve for x
    x = 10,122,683,186.10/127,743.71
  6. Step 6: Final answer
    x = 79,242.12

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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.