Home / 131,749.10-197,655.14-43,002.78

Finding the Fourth Proportional to 131,749.10, 197,655.14 and 43,002.78

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Solution

The fourth proportional to 131,749.10, 197,655.14 and 43,002.78 is: 64,514.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,749.10 : 197,655.14 = 43,002.78 : x
  2. Step 2: Convert to fraction form
    131,749.10/197,655.14 = 43,002.78/x
  3. Step 3: Cross multiply
    131,749.10x = 197,655.14 × 43,002.78
  4. Step 4: Simplify right side
    131,749.10x = 8,499,720,501.29
  5. Step 5: Solve for x
    x = 8,499,720,501.29/131,749.10
  6. Step 6: Final answer
    x = 64,514.45

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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.