Home / 157,528.15-236,230.80-68,721.10

Finding the Fourth Proportional to 157,528.15, 236,230.80 and 68,721.10

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Solution

The fourth proportional to 157,528.15, 236,230.80 and 68,721.10 is: 103,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,528.15 : 236,230.80 = 68,721.10 : x
  2. Step 2: Convert to fraction form
    157,528.15/236,230.80 = 68,721.10/x
  3. Step 3: Cross multiply
    157,528.15x = 236,230.80 × 68,721.10
  4. Step 4: Simplify right side
    157,528.15x = 16,234,040,429.88
  5. Step 5: Solve for x
    x = 16,234,040,429.88/157,528.15
  6. Step 6: Final answer
    x = 103,054.85

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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.