Home / 99,090.30-148,599.56-42,168

Finding the Fourth Proportional to 99,090.30, 148,599.56 and 42,168

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Solution

The fourth proportional to 99,090.30, 148,599.56 and 42,168 is: 63,236.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,090.30 : 148,599.56 = 42,168 : x
  2. Step 2: Convert to fraction form
    99,090.30/148,599.56 = 42,168/x
  3. Step 3: Cross multiply
    99,090.30x = 148,599.56 × 42,168
  4. Step 4: Simplify right side
    99,090.30x = 6,266,146,246.08
  5. Step 5: Solve for x
    x = 6,266,146,246.08/99,090.30
  6. Step 6: Final answer
    x = 63,236.73

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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.