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Finding the Fourth Proportional to 145,488.57, 218,286.16 and 61,269.93

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Solution

The fourth proportional to 145,488.57, 218,286.16 and 61,269.93 is: 91,927.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,488.57 : 218,286.16 = 61,269.93 : x
  2. Step 2: Convert to fraction form
    145,488.57/218,286.16 = 61,269.93/x
  3. Step 3: Cross multiply
    145,488.57x = 218,286.16 × 61,269.93
  4. Step 4: Simplify right side
    145,488.57x = 13,374,377,589.99
  5. Step 5: Solve for x
    x = 13,374,377,589.99/145,488.57
  6. Step 6: Final answer
    x = 91,927.34

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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.