Home / 126,916.20-190,374.30-119,140.20

Finding the Fourth Proportional to 126,916.20, 190,374.30 and 119,140.20

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Solution

The fourth proportional to 126,916.20, 190,374.30 and 119,140.20 is: 178,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,916.20 : 190,374.30 = 119,140.20 : x
  2. Step 2: Convert to fraction form
    126,916.20/190,374.30 = 119,140.20/x
  3. Step 3: Cross multiply
    126,916.20x = 190,374.30 × 119,140.20
  4. Step 4: Simplify right side
    126,916.20x = 22,681,232,176.86
  5. Step 5: Solve for x
    x = 22,681,232,176.86/126,916.20
  6. Step 6: Final answer
    x = 178,710.30

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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.