Home / 372,728.32-559,013.96-120,031.40

Finding the Fourth Proportional to 372,728.32, 559,013.96 and 120,031.40

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Solution

The fourth proportional to 372,728.32, 559,013.96 and 120,031.40 is: 180,021.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,728.32 : 559,013.96 = 120,031.40 : x
  2. Step 2: Convert to fraction form
    372,728.32/559,013.96 = 120,031.40/x
  3. Step 3: Cross multiply
    372,728.32x = 559,013.96 × 120,031.40
  4. Step 4: Simplify right side
    372,728.32x = 67,099,228,238.34
  5. Step 5: Solve for x
    x = 67,099,228,238.34/372,728.32
  6. Step 6: Final answer
    x = 180,021.81

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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.