Home / 131,511.80-197,267.70-48,438.20

Finding the Fourth Proportional to 131,511.80, 197,267.70 and 48,438.20

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Solution

The fourth proportional to 131,511.80, 197,267.70 and 48,438.20 is: 72,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,511.80 : 197,267.70 = 48,438.20 : x
  2. Step 2: Convert to fraction form
    131,511.80/197,267.70 = 48,438.20/x
  3. Step 3: Cross multiply
    131,511.80x = 197,267.70 × 48,438.20
  4. Step 4: Simplify right side
    131,511.80x = 9,555,292,306.14
  5. Step 5: Solve for x
    x = 9,555,292,306.14/131,511.80
  6. Step 6: Final answer
    x = 72,657.30

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1.5x scale

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.