Home / 126,287.18-189,836.75-101,601.42

Finding the Fourth Proportional to 126,287.18, 189,836.75 and 101,601.42

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Solution

The fourth proportional to 126,287.18, 189,836.75 and 101,601.42 is: 152,728.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,287.18 : 189,836.75 = 101,601.42 : x
  2. Step 2: Convert to fraction form
    126,287.18/189,836.75 = 101,601.42/x
  3. Step 3: Cross multiply
    126,287.18x = 189,836.75 × 101,601.42
  4. Step 4: Simplify right side
    126,287.18x = 19,287,683,368.19
  5. Step 5: Solve for x
    x = 19,287,683,368.19/126,287.18
  6. Step 6: Final answer
    x = 152,728.75

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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.