Home / 102,480.26-141,461.79-77,060.48

Finding the Fourth Proportional to 102,480.26, 141,461.79 and 77,060.48

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Solution

The fourth proportional to 102,480.26, 141,461.79 and 77,060.48 is: 106,372.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,480.26 : 141,461.79 = 77,060.48 : x
  2. Step 2: Convert to fraction form
    102,480.26/141,461.79 = 77,060.48/x
  3. Step 3: Cross multiply
    102,480.26x = 141,461.79 × 77,060.48
  4. Step 4: Simplify right side
    102,480.26x = 10,901,113,439.06
  5. Step 5: Solve for x
    x = 10,901,113,439.06/102,480.26
  6. Step 6: Final answer
    x = 106,372.81

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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.