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Finding the Fourth Proportional to 145,877.67, 218,853.41 and 40,696.56

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Solution

The fourth proportional to 145,877.67, 218,853.41 and 40,696.56 is: 61,055.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,877.67 : 218,853.41 = 40,696.56 : x
  2. Step 2: Convert to fraction form
    145,877.67/218,853.41 = 40,696.56/x
  3. Step 3: Cross multiply
    145,877.67x = 218,853.41 × 40,696.56
  4. Step 4: Simplify right side
    145,877.67x = 8,906,580,727.79
  5. Step 5: Solve for x
    x = 8,906,580,727.79/145,877.67
  6. Step 6: Final answer
    x = 61,055.13

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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.