Home / 127,052.64-175,252.56-81,789.76

Finding the Fourth Proportional to 127,052.64, 175,252.56 and 81,789.76

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Solution

The fourth proportional to 127,052.64, 175,252.56 and 81,789.76 is: 112,818.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,052.64 : 175,252.56 = 81,789.76 : x
  2. Step 2: Convert to fraction form
    127,052.64/175,252.56 = 81,789.76/x
  3. Step 3: Cross multiply
    127,052.64x = 175,252.56 × 81,789.76
  4. Step 4: Simplify right side
    127,052.64x = 14,333,864,821.79
  5. Step 5: Solve for x
    x = 14,333,864,821.79/127,052.64
  6. Step 6: Final answer
    x = 112,818.32

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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.