Home / 91,176.98-136,721.66-43,105.64

Finding the Fourth Proportional to 91,176.98, 136,721.66 and 43,105.64

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Solution

The fourth proportional to 91,176.98, 136,721.66 and 43,105.64 is: 64,637.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,176.98 : 136,721.66 = 43,105.64 : x
  2. Step 2: Convert to fraction form
    91,176.98/136,721.66 = 43,105.64/x
  3. Step 3: Cross multiply
    91,176.98x = 136,721.66 × 43,105.64
  4. Step 4: Simplify right side
    91,176.98x = 5,893,473,757.03
  5. Step 5: Solve for x
    x = 5,893,473,757.03/91,176.98
  6. Step 6: Final answer
    x = 64,637.74

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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.