Home / 140,780.13-211,164.72-52,031.67

Finding the Fourth Proportional to 140,780.13, 211,164.72 and 52,031.67

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Solution

The fourth proportional to 140,780.13, 211,164.72 and 52,031.67 is: 78,045.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,780.13 : 211,164.72 = 52,031.67 : x
  2. Step 2: Convert to fraction form
    140,780.13/211,164.72 = 52,031.67/x
  3. Step 3: Cross multiply
    140,780.13x = 211,164.72 × 52,031.67
  4. Step 4: Simplify right side
    140,780.13x = 10,987,253,026.68
  5. Step 5: Solve for x
    x = 10,987,253,026.68/140,780.13
  6. Step 6: Final answer
    x = 78,045.48

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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.