Home / 155,377.67-214,439.48-87,397.20

Finding the Fourth Proportional to 155,377.67, 214,439.48 and 87,397.20

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Solution

The fourth proportional to 155,377.67, 214,439.48 and 87,397.20 is: 120,618.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,377.67 : 214,439.48 = 87,397.20 : x
  2. Step 2: Convert to fraction form
    155,377.67/214,439.48 = 87,397.20/x
  3. Step 3: Cross multiply
    155,377.67x = 214,439.48 × 87,397.20
  4. Step 4: Simplify right side
    155,377.67x = 18,741,409,684.47
  5. Step 5: Solve for x
    x = 18,741,409,684.47/155,377.67
  6. Step 6: Final answer
    x = 120,618.43

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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.