Home / 102,511.20-153,766.80-101,474.40

Finding the Fourth Proportional to 102,511.20, 153,766.80 and 101,474.40

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Solution

The fourth proportional to 102,511.20, 153,766.80 and 101,474.40 is: 152,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,511.20 : 153,766.80 = 101,474.40 : x
  2. Step 2: Convert to fraction form
    102,511.20/153,766.80 = 101,474.40/x
  3. Step 3: Cross multiply
    102,511.20x = 153,766.80 × 101,474.40
  4. Step 4: Simplify right side
    102,511.20x = 15,603,393,769.92
  5. Step 5: Solve for x
    x = 15,603,393,769.92/102,511.20
  6. Step 6: Final answer
    x = 152,211.60

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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.