Home / 111,930.21-154,455.90-63,533.14

Finding the Fourth Proportional to 111,930.21, 154,455.90 and 63,533.14

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Solution

The fourth proportional to 111,930.21, 154,455.90 and 63,533.14 is: 87,671.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,930.21 : 154,455.90 = 63,533.14 : x
  2. Step 2: Convert to fraction form
    111,930.21/154,455.90 = 63,533.14/x
  3. Step 3: Cross multiply
    111,930.21x = 154,455.90 × 63,533.14
  4. Step 4: Simplify right side
    111,930.21x = 9,813,068,318.53
  5. Step 5: Solve for x
    x = 9,813,068,318.53/111,930.21
  6. Step 6: Final answer
    x = 87,671.31

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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.