Home / 99,168.30-148,733.28-28,090.35

Finding the Fourth Proportional to 99,168.30, 148,733.28 and 28,090.35

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Solution

The fourth proportional to 99,168.30, 148,733.28 and 28,090.35 is: 42,130.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,168.30 : 148,733.28 = 28,090.35 : x
  2. Step 2: Convert to fraction form
    99,168.30/148,733.28 = 28,090.35/x
  3. Step 3: Cross multiply
    99,168.30x = 148,733.28 × 28,090.35
  4. Step 4: Simplify right side
    99,168.30x = 4,177,969,891.85
  5. Step 5: Solve for x
    x = 4,177,969,891.85/99,168.30
  6. Step 6: Final answer
    x = 42,130.09

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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.