Home / 164,091.12-226,462.80-100,471.20

Finding the Fourth Proportional to 164,091.12, 226,462.80 and 100,471.20

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Solution

The fourth proportional to 164,091.12, 226,462.80 and 100,471.20 is: 138,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,091.12 : 226,462.80 = 100,471.20 : x
  2. Step 2: Convert to fraction form
    164,091.12/226,462.80 = 100,471.20/x
  3. Step 3: Cross multiply
    164,091.12x = 226,462.80 × 100,471.20
  4. Step 4: Simplify right side
    164,091.12x = 22,752,989,271.36
  5. Step 5: Solve for x
    x = 22,752,989,271.36/164,091.12
  6. Step 6: Final answer
    x = 138,660.70

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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.