Home / 138,275.96-190,764.06-102,553.88

Finding the Fourth Proportional to 138,275.96, 190,764.06 and 102,553.88

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Solution

The fourth proportional to 138,275.96, 190,764.06 and 102,553.88 is: 141,482.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,275.96 : 190,764.06 = 102,553.88 : x
  2. Step 2: Convert to fraction form
    138,275.96/190,764.06 = 102,553.88/x
  3. Step 3: Cross multiply
    138,275.96x = 190,764.06 × 102,553.88
  4. Step 4: Simplify right side
    138,275.96x = 19,563,594,517.55
  5. Step 5: Solve for x
    x = 19,563,594,517.55/138,275.96
  6. Step 6: Final answer
    x = 141,482.25

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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.