Home / 111,409.02-153,843.30-75,731.76

Finding the Fourth Proportional to 111,409.02, 153,843.30 and 75,731.76

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Solution

The fourth proportional to 111,409.02, 153,843.30 and 75,731.76 is: 104,577.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,409.02 : 153,843.30 = 75,731.76 : x
  2. Step 2: Convert to fraction form
    111,409.02/153,843.30 = 75,731.76/x
  3. Step 3: Cross multiply
    111,409.02x = 153,843.30 × 75,731.76
  4. Step 4: Simplify right side
    111,409.02x = 11,650,823,873.21
  5. Step 5: Solve for x
    x = 11,650,823,873.21/111,409.02
  6. Step 6: Final answer
    x = 104,577.03

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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.