Home / 157,517.65-236,215.05-68,710.60

Finding the Fourth Proportional to 157,517.65, 236,215.05 and 68,710.60

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Solution

The fourth proportional to 157,517.65, 236,215.05 and 68,710.60 is: 103,039.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,517.65 : 236,215.05 = 68,710.60 : x
  2. Step 2: Convert to fraction form
    157,517.65/236,215.05 = 68,710.60/x
  3. Step 3: Cross multiply
    157,517.65x = 236,215.05 × 68,710.60
  4. Step 4: Simplify right side
    157,517.65x = 16,230,477,814.53
  5. Step 5: Solve for x
    x = 16,230,477,814.53/157,517.65
  6. Step 6: Final answer
    x = 103,039.11

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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.