Home / 113,566.64-155,586.85-109,310.16

Finding the Fourth Proportional to 113,566.64, 155,586.85 and 109,310.16

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Solution

The fourth proportional to 113,566.64, 155,586.85 and 109,310.16 is: 149,755.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,566.64 : 155,586.85 = 109,310.16 : x
  2. Step 2: Convert to fraction form
    113,566.64/155,586.85 = 109,310.16/x
  3. Step 3: Cross multiply
    113,566.64x = 155,586.85 × 109,310.16
  4. Step 4: Simplify right side
    113,566.64x = 17,007,222,689.46
  5. Step 5: Solve for x
    x = 17,007,222,689.46/113,566.64
  6. Step 6: Final answer
    x = 149,755.45

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.