Home / 157,175.46-235,758.87-68,428.80

Finding the Fourth Proportional to 157,175.46, 235,758.87 and 68,428.80

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Solution

The fourth proportional to 157,175.46, 235,758.87 and 68,428.80 is: 102,641.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,175.46 : 235,758.87 = 68,428.80 : x
  2. Step 2: Convert to fraction form
    157,175.46/235,758.87 = 68,428.80/x
  3. Step 3: Cross multiply
    157,175.46x = 235,758.87 × 68,428.80
  4. Step 4: Simplify right side
    157,175.46x = 16,132,696,563.46
  5. Step 5: Solve for x
    x = 16,132,696,563.46/157,175.46
  6. Step 6: Final answer
    x = 102,641.32

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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.