Home / 119,944.80-165,499.20-72,187.20

Finding the Fourth Proportional to 119,944.80, 165,499.20 and 72,187.20

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Solution

The fourth proportional to 119,944.80, 165,499.20 and 72,187.20 is: 99,603.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,944.80 : 165,499.20 = 72,187.20 : x
  2. Step 2: Convert to fraction form
    119,944.80/165,499.20 = 72,187.20/x
  3. Step 3: Cross multiply
    119,944.80x = 165,499.20 × 72,187.20
  4. Step 4: Simplify right side
    119,944.80x = 11,946,923,850.24
  5. Step 5: Solve for x
    x = 11,946,923,850.24/119,944.80
  6. Step 6: Final answer
    x = 99,603.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.