Home / 99,548.49-149,416.53-66,291.81

Finding the Fourth Proportional to 99,548.49, 149,416.53 and 66,291.81

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Solution

The fourth proportional to 99,548.49, 149,416.53 and 66,291.81 is: 99,500.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,548.49 : 149,416.53 = 66,291.81 : x
  2. Step 2: Convert to fraction form
    99,548.49/149,416.53 = 66,291.81/x
  3. Step 3: Cross multiply
    99,548.49x = 149,416.53 × 66,291.81
  4. Step 4: Simplify right side
    99,548.49x = 9,905,092,217.62
  5. Step 5: Solve for x
    x = 9,905,092,217.62/99,548.49
  6. Step 6: Final answer
    x = 99,500.18

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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.