Home / 128,670.28-193,031.20-44,433.52

Finding the Fourth Proportional to 128,670.28, 193,031.20 and 44,433.52

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Solution

The fourth proportional to 128,670.28, 193,031.20 and 44,433.52 is: 66,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,670.28 : 193,031.20 = 44,433.52 : x
  2. Step 2: Convert to fraction form
    128,670.28/193,031.20 = 44,433.52/x
  3. Step 3: Cross multiply
    128,670.28x = 193,031.20 × 44,433.52
  4. Step 4: Simplify right side
    128,670.28x = 8,577,055,685.82
  5. Step 5: Solve for x
    x = 8,577,055,685.82/128,670.28
  6. Step 6: Final answer
    x = 66,659.18

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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.