Home / 115,215.90-172,823.85-36,354.30

Finding the Fourth Proportional to 115,215.90, 172,823.85 and 36,354.30

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Solution

The fourth proportional to 115,215.90, 172,823.85 and 36,354.30 is: 54,531.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,215.90 : 172,823.85 = 36,354.30 : x
  2. Step 2: Convert to fraction form
    115,215.90/172,823.85 = 36,354.30/x
  3. Step 3: Cross multiply
    115,215.90x = 172,823.85 × 36,354.30
  4. Step 4: Simplify right side
    115,215.90x = 6,282,890,090.06
  5. Step 5: Solve for x
    x = 6,282,890,090.06/115,215.90
  6. Step 6: Final answer
    x = 54,531.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.