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Finding the Fourth Proportional to 103,353.91, 154,760.15 and 67,703.06

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Solution

The fourth proportional to 103,353.91, 154,760.15 and 67,703.06 is: 101,377.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,353.91 : 154,760.15 = 67,703.06 : x
  2. Step 2: Convert to fraction form
    103,353.91/154,760.15 = 67,703.06/x
  3. Step 3: Cross multiply
    103,353.91x = 154,760.15 × 67,703.06
  4. Step 4: Simplify right side
    103,353.91x = 10,477,736,277.22
  5. Step 5: Solve for x
    x = 10,477,736,277.22/103,353.91
  6. Step 6: Final answer
    x = 101,377.26

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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.