Home / 119,923.20-165,369.60-77,414.40

Finding the Fourth Proportional to 119,923.20, 165,369.60 and 77,414.40

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Solution

The fourth proportional to 119,923.20, 165,369.60 and 77,414.40 is: 106,751.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,923.20 : 165,369.60 = 77,414.40 : x
  2. Step 2: Convert to fraction form
    119,923.20/165,369.60 = 77,414.40/x
  3. Step 3: Cross multiply
    119,923.20x = 165,369.60 × 77,414.40
  4. Step 4: Simplify right side
    119,923.20x = 12,801,988,362.24
  5. Step 5: Solve for x
    x = 12,801,988,362.24/119,923.20
  6. Step 6: Final answer
    x = 106,751.56

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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.