Home / 111,849.76-154,350-64,131.04

Finding the Fourth Proportional to 111,849.76, 154,350 and 64,131.04

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Solution

The fourth proportional to 111,849.76, 154,350 and 64,131.04 is: 88,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,849.76 : 154,350 = 64,131.04 : x
  2. Step 2: Convert to fraction form
    111,849.76/154,350 = 64,131.04/x
  3. Step 3: Cross multiply
    111,849.76x = 154,350 × 64,131.04
  4. Step 4: Simplify right side
    111,849.76x = 9,898,626,024
  5. Step 5: Solve for x
    x = 9,898,626,024/111,849.76
  6. Step 6: Final answer
    x = 88,499.30

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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.