Home / 126,397.14-189,532.20-42,127.80

Finding the Fourth Proportional to 126,397.14, 189,532.20 and 42,127.80

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Solution

The fourth proportional to 126,397.14, 189,532.20 and 42,127.80 is: 63,170.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,397.14 : 189,532.20 = 42,127.80 : x
  2. Step 2: Convert to fraction form
    126,397.14/189,532.20 = 42,127.80/x
  3. Step 3: Cross multiply
    126,397.14x = 189,532.20 × 42,127.80
  4. Step 4: Simplify right side
    126,397.14x = 7,984,574,615.16
  5. Step 5: Solve for x
    x = 7,984,574,615.16/126,397.14
  6. Step 6: Final answer
    x = 63,170.53

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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.