Home / 115,221.90-172,832.85-36,342.28

Finding the Fourth Proportional to 115,221.90, 172,832.85 and 36,342.28

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Solution

The fourth proportional to 115,221.90, 172,832.85 and 36,342.28 is: 54,513.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,221.90 : 172,832.85 = 36,342.28 : x
  2. Step 2: Convert to fraction form
    115,221.90/172,832.85 = 36,342.28/x
  3. Step 3: Cross multiply
    115,221.90x = 172,832.85 × 36,342.28
  4. Step 4: Simplify right side
    115,221.90x = 6,281,139,827.90
  5. Step 5: Solve for x
    x = 6,281,139,827.90/115,221.90
  6. Step 6: Final answer
    x = 54,513.42

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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.