Home / 130,275.61-195,198.77-119,381.11

Finding the Fourth Proportional to 130,275.61, 195,198.77 and 119,381.11

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Solution

The fourth proportional to 130,275.61, 195,198.77 and 119,381.11 is: 178,874.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,275.61 : 195,198.77 = 119,381.11 : x
  2. Step 2: Convert to fraction form
    130,275.61/195,198.77 = 119,381.11/x
  3. Step 3: Cross multiply
    130,275.61x = 195,198.77 × 119,381.11
  4. Step 4: Simplify right side
    130,275.61x = 23,303,045,236.33
  5. Step 5: Solve for x
    x = 23,303,045,236.33/130,275.61
  6. Step 6: Final answer
    x = 178,874.97

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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.