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Finding the Fourth Proportional to 127,398.96, 175,828.32 and 91,707.12

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Solution

The fourth proportional to 127,398.96, 175,828.32 and 91,707.12 is: 126,568.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,398.96 : 175,828.32 = 91,707.12 : x
  2. Step 2: Convert to fraction form
    127,398.96/175,828.32 = 91,707.12/x
  3. Step 3: Cross multiply
    127,398.96x = 175,828.32 × 91,707.12
  4. Step 4: Simplify right side
    127,398.96x = 16,124,708,841.64
  5. Step 5: Solve for x
    x = 16,124,708,841.64/127,398.96
  6. Step 6: Final answer
    x = 126,568.61

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1.5x scale

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.