Home / 99,388.05-137,191.11-59,101.68

Finding the Fourth Proportional to 99,388.05, 137,191.11 and 59,101.68

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Solution

The fourth proportional to 99,388.05, 137,191.11 and 59,101.68 is: 81,581.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,388.05 : 137,191.11 = 59,101.68 : x
  2. Step 2: Convert to fraction form
    99,388.05/137,191.11 = 59,101.68/x
  3. Step 3: Cross multiply
    99,388.05x = 137,191.11 × 59,101.68
  4. Step 4: Simplify right side
    99,388.05x = 8,108,225,082.06
  5. Step 5: Solve for x
    x = 8,108,225,082.06/99,388.05
  6. Step 6: Final answer
    x = 81,581.49

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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.