Home / 109,882.56-151,618.16-61,485.46

Finding the Fourth Proportional to 109,882.56, 151,618.16 and 61,485.46

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Solution

The fourth proportional to 109,882.56, 151,618.16 and 61,485.46 is: 84,838.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,882.56 : 151,618.16 = 61,485.46 : x
  2. Step 2: Convert to fraction form
    109,882.56/151,618.16 = 61,485.46/x
  3. Step 3: Cross multiply
    109,882.56x = 151,618.16 × 61,485.46
  4. Step 4: Simplify right side
    109,882.56x = 9,322,312,311.95
  5. Step 5: Solve for x
    x = 9,322,312,311.95/109,882.56
  6. Step 6: Final answer
    x = 84,838.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.