Home / 154,639.80-231,981.30-65,892.60

Finding the Fourth Proportional to 154,639.80, 231,981.30 and 65,892.60

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Solution

The fourth proportional to 154,639.80, 231,981.30 and 65,892.60 is: 98,848.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,639.80 : 231,981.30 = 65,892.60 : x
  2. Step 2: Convert to fraction form
    154,639.80/231,981.30 = 65,892.60/x
  3. Step 3: Cross multiply
    154,639.80x = 231,981.30 × 65,892.60
  4. Step 4: Simplify right side
    154,639.80x = 15,285,851,008.38
  5. Step 5: Solve for x
    x = 15,285,851,008.38/154,639.80
  6. Step 6: Final answer
    x = 98,848.10

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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.