Home / 102,172.35-141,002.07-61,863.51

Finding the Fourth Proportional to 102,172.35, 141,002.07 and 61,863.51

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Solution

The fourth proportional to 102,172.35, 141,002.07 and 61,863.51 is: 85,374.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,172.35 : 141,002.07 = 61,863.51 : x
  2. Step 2: Convert to fraction form
    102,172.35/141,002.07 = 61,863.51/x
  3. Step 3: Cross multiply
    102,172.35x = 141,002.07 × 61,863.51
  4. Step 4: Simplify right side
    102,172.35x = 8,722,882,967.47
  5. Step 5: Solve for x
    x = 8,722,882,967.47/102,172.35
  6. Step 6: Final answer
    x = 85,374.20

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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.