Home / 118,121.05-177,217.35-42,209.65

Finding the Fourth Proportional to 118,121.05, 177,217.35 and 42,209.65

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Solution

The fourth proportional to 118,121.05, 177,217.35 and 42,209.65 is: 63,327.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,121.05 : 177,217.35 = 42,209.65 : x
  2. Step 2: Convert to fraction form
    118,121.05/177,217.35 = 42,209.65/x
  3. Step 3: Cross multiply
    118,121.05x = 177,217.35 × 42,209.65
  4. Step 4: Simplify right side
    118,121.05x = 7,480,282,317.43
  5. Step 5: Solve for x
    x = 7,480,282,317.43/118,121.05
  6. Step 6: Final answer
    x = 63,327.26

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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.