Home / 157,517.84-236,280-87,840.56

Finding the Fourth Proportional to 157,517.84, 236,280 and 87,840.56

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Solution

The fourth proportional to 157,517.84, 236,280 and 87,840.56 is: 131,762.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,517.84 : 236,280 = 87,840.56 : x
  2. Step 2: Convert to fraction form
    157,517.84/236,280 = 87,840.56/x
  3. Step 3: Cross multiply
    157,517.84x = 236,280 × 87,840.56
  4. Step 4: Simplify right side
    157,517.84x = 20,754,967,516.80
  5. Step 5: Solve for x
    x = 20,754,967,516.80/157,517.84
  6. Step 6: Final answer
    x = 131,762.65

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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.