Home / 230,717.36-318,380.12-130,124.72

Finding the Fourth Proportional to 230,717.36, 318,380.12 and 130,124.72

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Solution

The fourth proportional to 230,717.36, 318,380.12 and 130,124.72 is: 179,566.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,717.36 : 318,380.12 = 130,124.72 : x
  2. Step 2: Convert to fraction form
    230,717.36/318,380.12 = 130,124.72/x
  3. Step 3: Cross multiply
    230,717.36x = 318,380.12 × 130,124.72
  4. Step 4: Simplify right side
    230,717.36x = 41,429,123,968.57
  5. Step 5: Solve for x
    x = 41,429,123,968.57/230,717.36
  6. Step 6: Final answer
    x = 179,566.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.