Home / 111,811.80-154,301.56-64,064.18

Finding the Fourth Proportional to 111,811.80, 154,301.56 and 64,064.18

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Solution

The fourth proportional to 111,811.80, 154,301.56 and 64,064.18 is: 88,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,811.80 : 154,301.56 = 64,064.18 : x
  2. Step 2: Convert to fraction form
    111,811.80/154,301.56 = 64,064.18/x
  3. Step 3: Cross multiply
    111,811.80x = 154,301.56 × 64,064.18
  4. Step 4: Simplify right side
    111,811.80x = 9,885,202,914.12
  5. Step 5: Solve for x
    x = 9,885,202,914.12/111,811.80
  6. Step 6: Final answer
    x = 88,409.30

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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.