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Finding the Fourth Proportional to 125,362.98, 187,867.66 and 69,228.36

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Solution

The fourth proportional to 125,362.98, 187,867.66 and 69,228.36 is: 103,744.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,362.98 : 187,867.66 = 69,228.36 : x
  2. Step 2: Convert to fraction form
    125,362.98/187,867.66 = 69,228.36/x
  3. Step 3: Cross multiply
    125,362.98x = 187,867.66 × 69,228.36
  4. Step 4: Simplify right side
    125,362.98x = 13,005,769,652.70
  5. Step 5: Solve for x
    x = 13,005,769,652.70/125,362.98
  6. Step 6: Final answer
    x = 103,744.90

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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.