Home / 132,240.80-198,050.16-102,421.28

Finding the Fourth Proportional to 132,240.80, 198,050.16 and 102,421.28

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Solution

The fourth proportional to 132,240.80, 198,050.16 and 102,421.28 is: 153,391.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,240.80 : 198,050.16 = 102,421.28 : x
  2. Step 2: Convert to fraction form
    132,240.80/198,050.16 = 102,421.28/x
  3. Step 3: Cross multiply
    132,240.80x = 198,050.16 × 102,421.28
  4. Step 4: Simplify right side
    132,240.80x = 20,284,550,891.40
  5. Step 5: Solve for x
    x = 20,284,550,891.40/132,240.80
  6. Step 6: Final answer
    x = 153,391.02

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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.