Home / 126,881.75-190,322.63-42,641.91

Finding the Fourth Proportional to 126,881.75, 190,322.63 and 42,641.91

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Solution

The fourth proportional to 126,881.75, 190,322.63 and 42,641.91 is: 63,962.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,881.75 : 190,322.63 = 42,641.91 : x
  2. Step 2: Convert to fraction form
    126,881.75/190,322.63 = 42,641.91/x
  3. Step 3: Cross multiply
    126,881.75x = 190,322.63 × 42,641.91
  4. Step 4: Simplify right side
    126,881.75x = 8,115,720,959.92
  5. Step 5: Solve for x
    x = 8,115,720,959.92/126,881.75
  6. Step 6: Final answer
    x = 63,962.87

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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.