Home / 138,159.06-207,238.61-49,407.18

Finding the Fourth Proportional to 138,159.06, 207,238.61 and 49,407.18

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Solution

The fourth proportional to 138,159.06, 207,238.61 and 49,407.18 is: 74,110.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,159.06 : 207,238.61 = 49,407.18 : x
  2. Step 2: Convert to fraction form
    138,159.06/207,238.61 = 49,407.18/x
  3. Step 3: Cross multiply
    138,159.06x = 207,238.61 × 49,407.18
  4. Step 4: Simplify right side
    138,159.06x = 10,239,075,060.18
  5. Step 5: Solve for x
    x = 10,239,075,060.18/138,159.06
  6. Step 6: Final answer
    x = 74,110.78

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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.