Home / 133,218.66-199,802.06-38,442.18

Finding the Fourth Proportional to 133,218.66, 199,802.06 and 38,442.18

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Solution

The fourth proportional to 133,218.66, 199,802.06 and 38,442.18 is: 57,655.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,218.66 : 199,802.06 = 38,442.18 : x
  2. Step 2: Convert to fraction form
    133,218.66/199,802.06 = 38,442.18/x
  3. Step 3: Cross multiply
    133,218.66x = 199,802.06 × 38,442.18
  4. Step 4: Simplify right side
    133,218.66x = 7,680,826,754.89
  5. Step 5: Solve for x
    x = 7,680,826,754.89/133,218.66
  6. Step 6: Final answer
    x = 57,655.79

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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.