Home / 155,565.30-214,663.68-87,581.04

Finding the Fourth Proportional to 155,565.30, 214,663.68 and 87,581.04

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Solution

The fourth proportional to 155,565.30, 214,663.68 and 87,581.04 is: 120,852.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,565.30 : 214,663.68 = 87,581.04 : x
  2. Step 2: Convert to fraction form
    155,565.30/214,663.68 = 87,581.04/x
  3. Step 3: Cross multiply
    155,565.30x = 214,663.68 × 87,581.04
  4. Step 4: Simplify right side
    155,565.30x = 18,800,468,344.63
  5. Step 5: Solve for x
    x = 18,800,468,344.63/155,565.30
  6. Step 6: Final answer
    x = 120,852.58

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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.