Home / 127,972.10-191,956.35-57,851.30

Finding the Fourth Proportional to 127,972.10, 191,956.35 and 57,851.30

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Solution

The fourth proportional to 127,972.10, 191,956.35 and 57,851.30 is: 86,776.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,972.10 : 191,956.35 = 57,851.30 : x
  2. Step 2: Convert to fraction form
    127,972.10/191,956.35 = 57,851.30/x
  3. Step 3: Cross multiply
    127,972.10x = 191,956.35 × 57,851.30
  4. Step 4: Simplify right side
    127,972.10x = 11,104,924,390.76
  5. Step 5: Solve for x
    x = 11,104,924,390.76/127,972.10
  6. Step 6: Final answer
    x = 86,776.14

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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.