Home / 102,851.17-154,338.07-45,920.66

Finding the Fourth Proportional to 102,851.17, 154,338.07 and 45,920.66

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Solution

The fourth proportional to 102,851.17, 154,338.07 and 45,920.66 is: 68,908.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,851.17 : 154,338.07 = 45,920.66 : x
  2. Step 2: Convert to fraction form
    102,851.17/154,338.07 = 45,920.66/x
  3. Step 3: Cross multiply
    102,851.17x = 154,338.07 × 45,920.66
  4. Step 4: Simplify right side
    102,851.17x = 7,087,305,952.83
  5. Step 5: Solve for x
    x = 7,087,305,952.83/102,851.17
  6. Step 6: Final answer
    x = 68,908.36

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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.