Home / 154,492.57-231,680.53-71,328.25

Finding the Fourth Proportional to 154,492.57, 231,680.53 and 71,328.25

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Solution

The fourth proportional to 154,492.57, 231,680.53 and 71,328.25 is: 106,965.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,492.57 : 231,680.53 = 71,328.25 : x
  2. Step 2: Convert to fraction form
    154,492.57/231,680.53 = 71,328.25/x
  3. Step 3: Cross multiply
    154,492.57x = 231,680.53 × 71,328.25
  4. Step 4: Simplify right side
    154,492.57x = 16,525,366,763.97
  5. Step 5: Solve for x
    x = 16,525,366,763.97/154,492.57
  6. Step 6: Final answer
    x = 106,965.45

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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.