Home / 115,110.72-172,679.04-36,203.76

Finding the Fourth Proportional to 115,110.72, 172,679.04 and 36,203.76

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Solution

The fourth proportional to 115,110.72, 172,679.04 and 36,203.76 is: 54,309.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,110.72 : 172,679.04 = 36,203.76 : x
  2. Step 2: Convert to fraction form
    115,110.72/172,679.04 = 36,203.76/x
  3. Step 3: Cross multiply
    115,110.72x = 172,679.04 × 36,203.76
  4. Step 4: Simplify right side
    115,110.72x = 6,251,630,521.19
  5. Step 5: Solve for x
    x = 6,251,630,521.19/115,110.72
  6. Step 6: Final answer
    x = 54,309.72

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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.