Home / 126,975.60-190,445.78-88,909.45

Finding the Fourth Proportional to 126,975.60, 190,445.78 and 88,909.45

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Solution

The fourth proportional to 126,975.60, 190,445.78 and 88,909.45 is: 133,351.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,975.60 : 190,445.78 = 88,909.45 : x
  2. Step 2: Convert to fraction form
    126,975.60/190,445.78 = 88,909.45/x
  3. Step 3: Cross multiply
    126,975.60x = 190,445.78 × 88,909.45
  4. Step 4: Simplify right side
    126,975.60x = 16,932,429,300.78
  5. Step 5: Solve for x
    x = 16,932,429,300.78/126,975.60
  6. Step 6: Final answer
    x = 133,351.84

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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.