Home / 198,152.40-297,225.16-79,820.72

Finding the Fourth Proportional to 198,152.40, 297,225.16 and 79,820.72

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Solution

The fourth proportional to 198,152.40, 297,225.16 and 79,820.72 is: 119,729.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,152.40 : 297,225.16 = 79,820.72 : x
  2. Step 2: Convert to fraction form
    198,152.40/297,225.16 = 79,820.72/x
  3. Step 3: Cross multiply
    198,152.40x = 297,225.16 × 79,820.72
  4. Step 4: Simplify right side
    198,152.40x = 23,724,726,273.32
  5. Step 5: Solve for x
    x = 23,724,726,273.32/198,152.40
  6. Step 6: Final answer
    x = 119,729.69

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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.