Home / 157,518.15-236,215.80-68,711.10

Finding the Fourth Proportional to 157,518.15, 236,215.80 and 68,711.10

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Solution

The fourth proportional to 157,518.15, 236,215.80 and 68,711.10 is: 103,039.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,518.15 : 236,215.80 = 68,711.10 : x
  2. Step 2: Convert to fraction form
    157,518.15/236,215.80 = 68,711.10/x
  3. Step 3: Cross multiply
    157,518.15x = 236,215.80 × 68,711.10
  4. Step 4: Simplify right side
    157,518.15x = 16,230,647,455.38
  5. Step 5: Solve for x
    x = 16,230,647,455.38/157,518.15
  6. Step 6: Final answer
    x = 103,039.86

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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.