Home / 155,337.58-214,372.02-87,354.21

Finding the Fourth Proportional to 155,337.58, 214,372.02 and 87,354.21

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Solution

The fourth proportional to 155,337.58, 214,372.02 and 87,354.21 is: 120,552.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,337.58 : 214,372.02 = 87,354.21 : x
  2. Step 2: Convert to fraction form
    155,337.58/214,372.02 = 87,354.21/x
  3. Step 3: Cross multiply
    155,337.58x = 214,372.02 × 87,354.21
  4. Step 4: Simplify right side
    155,337.58x = 18,726,298,016.43
  5. Step 5: Solve for x
    x = 18,726,298,016.43/155,337.58
  6. Step 6: Final answer
    x = 120,552.27

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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.