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Finding the Fourth Proportional to 168,737.40, 253,106.10 and 154,959.30

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Solution

The fourth proportional to 168,737.40, 253,106.10 and 154,959.30 is: 232,438.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,737.40 : 253,106.10 = 154,959.30 : x
  2. Step 2: Convert to fraction form
    168,737.40/253,106.10 = 154,959.30/x
  3. Step 3: Cross multiply
    168,737.40x = 253,106.10 × 154,959.30
  4. Step 4: Simplify right side
    168,737.40x = 39,221,144,081.73
  5. Step 5: Solve for x
    x = 39,221,144,081.73/168,737.40
  6. Step 6: Final answer
    x = 232,438.95

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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.