Home / 99,358.05-149,338.18-65,738.74

Finding the Fourth Proportional to 99,358.05, 149,338.18 and 65,738.74

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Solution

The fourth proportional to 99,358.05, 149,338.18 and 65,738.74 is: 98,807.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,358.05 : 149,338.18 = 65,738.74 : x
  2. Step 2: Convert to fraction form
    99,358.05/149,338.18 = 65,738.74/x
  3. Step 3: Cross multiply
    99,358.05x = 149,338.18 × 65,738.74
  4. Step 4: Simplify right side
    99,358.05x = 9,817,303,775.93
  5. Step 5: Solve for x
    x = 9,817,303,775.93/99,358.05
  6. Step 6: Final answer
    x = 98,807.33

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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.