Home / 261,318.72-391,976.64-95,106.72

Finding the Fourth Proportional to 261,318.72, 391,976.64 and 95,106.72

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Solution

The fourth proportional to 261,318.72, 391,976.64 and 95,106.72 is: 142,659.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,318.72 : 391,976.64 = 95,106.72 : x
  2. Step 2: Convert to fraction form
    261,318.72/391,976.64 = 95,106.72/x
  3. Step 3: Cross multiply
    261,318.72x = 391,976.64 × 95,106.72
  4. Step 4: Simplify right side
    261,318.72x = 37,279,612,547.02
  5. Step 5: Solve for x
    x = 37,279,612,547.02/261,318.72
  6. Step 6: Final answer
    x = 142,659.56

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1.5x scale

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.