Home / 126,921.08-190,391.18-42,681.48

Finding the Fourth Proportional to 126,921.08, 190,391.18 and 42,681.48

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Solution

The fourth proportional to 126,921.08, 190,391.18 and 42,681.48 is: 64,025.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,921.08 : 190,391.18 = 42,681.48 : x
  2. Step 2: Convert to fraction form
    126,921.08/190,391.18 = 42,681.48/x
  3. Step 3: Cross multiply
    126,921.08x = 190,391.18 × 42,681.48
  4. Step 4: Simplify right side
    126,921.08x = 8,126,177,341.35
  5. Step 5: Solve for x
    x = 8,126,177,341.35/126,921.08
  6. Step 6: Final answer
    x = 64,025.44

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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.