Home / 99,330.88-149,094.24-72,961.60

Finding the Fourth Proportional to 99,330.88, 149,094.24 and 72,961.60

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Solution

The fourth proportional to 99,330.88, 149,094.24 and 72,961.60 is: 109,514.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,330.88 : 149,094.24 = 72,961.60 : x
  2. Step 2: Convert to fraction form
    99,330.88/149,094.24 = 72,961.60/x
  3. Step 3: Cross multiply
    99,330.88x = 149,094.24 × 72,961.60
  4. Step 4: Simplify right side
    99,330.88x = 10,878,154,301.18
  5. Step 5: Solve for x
    x = 10,878,154,301.18/99,330.88
  6. Step 6: Final answer
    x = 109,514.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.