Home / 131,432.80-197,246.40-52,603.60

Finding the Fourth Proportional to 131,432.80, 197,246.40 and 52,603.60

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Solution

The fourth proportional to 131,432.80, 197,246.40 and 52,603.60 is: 78,944.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,432.80 : 197,246.40 = 52,603.60 : x
  2. Step 2: Convert to fraction form
    131,432.80/197,246.40 = 52,603.60/x
  3. Step 3: Cross multiply
    131,432.80x = 197,246.40 × 52,603.60
  4. Step 4: Simplify right side
    131,432.80x = 10,375,870,727.04
  5. Step 5: Solve for x
    x = 10,375,870,727.04/131,432.80
  6. Step 6: Final answer
    x = 78,944.30

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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.