Home / 155,346.28-214,375.80-87,363.24

Finding the Fourth Proportional to 155,346.28, 214,375.80 and 87,363.24

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Solution

The fourth proportional to 155,346.28, 214,375.80 and 87,363.24 is: 120,560.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,346.28 : 214,375.80 = 87,363.24 : x
  2. Step 2: Convert to fraction form
    155,346.28/214,375.80 = 87,363.24/x
  3. Step 3: Cross multiply
    155,346.28x = 214,375.80 × 87,363.24
  4. Step 4: Simplify right side
    155,346.28x = 18,728,564,465.59
  5. Step 5: Solve for x
    x = 18,728,564,465.59/155,346.28
  6. Step 6: Final answer
    x = 120,560.11

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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.