Home / 126,987.30-190,920.15-118,764.90

Finding the Fourth Proportional to 126,987.30, 190,920.15 and 118,764.90

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Solution

The fourth proportional to 126,987.30, 190,920.15 and 118,764.90 is: 178,558.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,987.30 : 190,920.15 = 118,764.90 : x
  2. Step 2: Convert to fraction form
    126,987.30/190,920.15 = 118,764.90/x
  3. Step 3: Cross multiply
    126,987.30x = 190,920.15 × 118,764.90
  4. Step 4: Simplify right side
    126,987.30x = 22,674,612,522.74
  5. Step 5: Solve for x
    x = 22,674,612,522.74/126,987.30
  6. Step 6: Final answer
    x = 178,558.11

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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.