Home / 152,121.06-209,934.45-84,137.76

Finding the Fourth Proportional to 152,121.06, 209,934.45 and 84,137.76

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Solution

The fourth proportional to 152,121.06, 209,934.45 and 84,137.76 is: 116,114.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,121.06 : 209,934.45 = 84,137.76 : x
  2. Step 2: Convert to fraction form
    152,121.06/209,934.45 = 84,137.76/x
  3. Step 3: Cross multiply
    152,121.06x = 209,934.45 × 84,137.76
  4. Step 4: Simplify right side
    152,121.06x = 17,663,414,369.83
  5. Step 5: Solve for x
    x = 17,663,414,369.83/152,121.06
  6. Step 6: Final answer
    x = 116,114.19

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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.