Home / 111,826.24-154,308.70-66,495.47

Finding the Fourth Proportional to 111,826.24, 154,308.70 and 66,495.47

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Solution

The fourth proportional to 111,826.24, 154,308.70 and 66,495.47 is: 91,756.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,826.24 : 154,308.70 = 66,495.47 : x
  2. Step 2: Convert to fraction form
    111,826.24/154,308.70 = 66,495.47/x
  3. Step 3: Cross multiply
    111,826.24x = 154,308.70 × 66,495.47
  4. Step 4: Simplify right side
    111,826.24x = 10,260,828,469.13
  5. Step 5: Solve for x
    x = 10,260,828,469.13/111,826.24
  6. Step 6: Final answer
    x = 91,756.90

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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.