Home / 138,557.44-191,159.04-113,512.96

Finding the Fourth Proportional to 138,557.44, 191,159.04 and 113,512.96

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Solution

The fourth proportional to 138,557.44, 191,159.04 and 113,512.96 is: 156,606.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,557.44 : 191,159.04 = 113,512.96 : x
  2. Step 2: Convert to fraction form
    138,557.44/191,159.04 = 113,512.96/x
  3. Step 3: Cross multiply
    138,557.44x = 191,159.04 × 113,512.96
  4. Step 4: Simplify right side
    138,557.44x = 21,699,028,461.16
  5. Step 5: Solve for x
    x = 21,699,028,461.16/138,557.44
  6. Step 6: Final answer
    x = 156,606.74

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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.