Home / 126,831.12-190,254.88-42,587.88

Finding the Fourth Proportional to 126,831.12, 190,254.88 and 42,587.88

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Solution

The fourth proportional to 126,831.12, 190,254.88 and 42,587.88 is: 63,884.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,831.12 : 190,254.88 = 42,587.88 : x
  2. Step 2: Convert to fraction form
    126,831.12/190,254.88 = 42,587.88/x
  3. Step 3: Cross multiply
    126,831.12x = 190,254.88 × 42,587.88
  4. Step 4: Simplify right side
    126,831.12x = 8,102,551,998.85
  5. Step 5: Solve for x
    x = 8,102,551,998.85/126,831.12
  6. Step 6: Final answer
    x = 63,884.57

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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.