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Finding the Fourth Proportional to 129,714.74, 179,005.44 and 75,988.22

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Solution

The fourth proportional to 129,714.74, 179,005.44 and 75,988.22 is: 104,863.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,714.74 : 179,005.44 = 75,988.22 : x
  2. Step 2: Convert to fraction form
    129,714.74/179,005.44 = 75,988.22/x
  3. Step 3: Cross multiply
    129,714.74x = 179,005.44 × 75,988.22
  4. Step 4: Simplify right side
    129,714.74x = 13,602,304,755.92
  5. Step 5: Solve for x
    x = 13,602,304,755.92/129,714.74
  6. Step 6: Final answer
    x = 104,863.22

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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.