Home / 193,181.77-266,565.45-107,139.72

Finding the Fourth Proportional to 193,181.77, 266,565.45 and 107,139.72

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Solution

The fourth proportional to 193,181.77, 266,565.45 and 107,139.72 is: 147,838.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,181.77 : 266,565.45 = 107,139.72 : x
  2. Step 2: Convert to fraction form
    193,181.77/266,565.45 = 107,139.72/x
  3. Step 3: Cross multiply
    193,181.77x = 266,565.45 × 107,139.72
  4. Step 4: Simplify right side
    193,181.77x = 28,559,747,674.67
  5. Step 5: Solve for x
    x = 28,559,747,674.67/193,181.77
  6. Step 6: Final answer
    x = 147,838.73

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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.