Home / 140,881.52-194,421.48-77,219.30

Finding the Fourth Proportional to 140,881.52, 194,421.48 and 77,219.30

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Solution

The fourth proportional to 140,881.52, 194,421.48 and 77,219.30 is: 106,565.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,881.52 : 194,421.48 = 77,219.30 : x
  2. Step 2: Convert to fraction form
    140,881.52/194,421.48 = 77,219.30/x
  3. Step 3: Cross multiply
    140,881.52x = 194,421.48 × 77,219.30
  4. Step 4: Simplify right side
    140,881.52x = 15,013,090,590.56
  5. Step 5: Solve for x
    x = 15,013,090,590.56/140,881.52
  6. Step 6: Final answer
    x = 106,565.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.