Home / 154,049.11-212,551.34-89,479.98

Finding the Fourth Proportional to 154,049.11, 212,551.34 and 89,479.98

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Solution

The fourth proportional to 154,049.11, 212,551.34 and 89,479.98 is: 123,461.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,049.11 : 212,551.34 = 89,479.98 : x
  2. Step 2: Convert to fraction form
    154,049.11/212,551.34 = 89,479.98/x
  3. Step 3: Cross multiply
    154,049.11x = 212,551.34 × 89,479.98
  4. Step 4: Simplify right side
    154,049.11x = 19,019,090,672.94
  5. Step 5: Solve for x
    x = 19,019,090,672.94/154,049.11
  6. Step 6: Final answer
    x = 123,461.22

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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.