Home / 180,013.28-248,418.80-99,439.20

Finding the Fourth Proportional to 180,013.28, 248,418.80 and 99,439.20

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Solution

The fourth proportional to 180,013.28, 248,418.80 and 99,439.20 is: 137,226.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,013.28 : 248,418.80 = 99,439.20 : x
  2. Step 2: Convert to fraction form
    180,013.28/248,418.80 = 99,439.20/x
  3. Step 3: Cross multiply
    180,013.28x = 248,418.80 × 99,439.20
  4. Step 4: Simplify right side
    180,013.28x = 24,702,566,736.96
  5. Step 5: Solve for x
    x = 24,702,566,736.96/180,013.28
  6. Step 6: Final answer
    x = 137,226.36

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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.