Home / 155,456.04-214,524.45-87,476.88

Finding the Fourth Proportional to 155,456.04, 214,524.45 and 87,476.88

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Solution

The fourth proportional to 155,456.04, 214,524.45 and 87,476.88 is: 120,715.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,456.04 : 214,524.45 = 87,476.88 : x
  2. Step 2: Convert to fraction form
    155,456.04/214,524.45 = 87,476.88/x
  3. Step 3: Cross multiply
    155,456.04x = 214,524.45 × 87,476.88
  4. Step 4: Simplify right side
    155,456.04x = 18,765,929,569.72
  5. Step 5: Solve for x
    x = 18,765,929,569.72/155,456.04
  6. Step 6: Final answer
    x = 120,715.35

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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.