Home / 126,854.28-190,373.76-102,192.12

Finding the Fourth Proportional to 126,854.28, 190,373.76 and 102,192.12

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Solution

The fourth proportional to 126,854.28, 190,373.76 and 102,192.12 is: 153,362.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,854.28 : 190,373.76 = 102,192.12 : x
  2. Step 2: Convert to fraction form
    126,854.28/190,373.76 = 102,192.12/x
  3. Step 3: Cross multiply
    126,854.28x = 190,373.76 × 102,192.12
  4. Step 4: Simplify right side
    126,854.28x = 19,454,698,126.77
  5. Step 5: Solve for x
    x = 19,454,698,126.77/126,854.28
  6. Step 6: Final answer
    x = 153,362.57

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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.