Home / 111,621.14-154,063.72-63,902.02

Finding the Fourth Proportional to 111,621.14, 154,063.72 and 63,902.02

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Solution

The fourth proportional to 111,621.14, 154,063.72 and 63,902.02 is: 88,199.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,621.14 : 154,063.72 = 63,902.02 : x
  2. Step 2: Convert to fraction form
    111,621.14/154,063.72 = 63,902.02/x
  3. Step 3: Cross multiply
    111,621.14x = 154,063.72 × 63,902.02
  4. Step 4: Simplify right side
    111,621.14x = 9,844,982,916.71
  5. Step 5: Solve for x
    x = 9,844,982,916.71/111,621.14
  6. Step 6: Final answer
    x = 88,199.99

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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.