Home / 126,938.02-190,357.80-67,741.40

Finding the Fourth Proportional to 126,938.02, 190,357.80 and 67,741.40

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Solution

The fourth proportional to 126,938.02, 190,357.80 and 67,741.40 is: 101,585.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,938.02 : 190,357.80 = 67,741.40 : x
  2. Step 2: Convert to fraction form
    126,938.02/190,357.80 = 67,741.40/x
  3. Step 3: Cross multiply
    126,938.02x = 190,357.80 × 67,741.40
  4. Step 4: Simplify right side
    126,938.02x = 12,895,103,872.92
  5. Step 5: Solve for x
    x = 12,895,103,872.92/126,938.02
  6. Step 6: Final answer
    x = 101,585.83

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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.