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Finding the Fourth Proportional to 105,888.96, 146,115.96 and 63,446.40

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Solution

The fourth proportional to 105,888.96, 146,115.96 and 63,446.40 is: 87,549.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,888.96 : 146,115.96 = 63,446.40 : x
  2. Step 2: Convert to fraction form
    105,888.96/146,115.96 = 63,446.40/x
  3. Step 3: Cross multiply
    105,888.96x = 146,115.96 × 63,446.40
  4. Step 4: Simplify right side
    105,888.96x = 9,270,531,644.54
  5. Step 5: Solve for x
    x = 9,270,531,644.54/105,888.96
  6. Step 6: Final answer
    x = 87,549.56

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1.5x scale

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.