Home / 99,960.03-149,964.66-70,435.53

Finding the Fourth Proportional to 99,960.03, 149,964.66 and 70,435.53

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Solution

The fourth proportional to 99,960.03, 149,964.66 and 70,435.53 is: 105,670.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,960.03 : 149,964.66 = 70,435.53 : x
  2. Step 2: Convert to fraction form
    99,960.03/149,964.66 = 70,435.53/x
  3. Step 3: Cross multiply
    99,960.03x = 149,964.66 × 70,435.53
  4. Step 4: Simplify right side
    99,960.03x = 10,562,840,308.37
  5. Step 5: Solve for x
    x = 10,562,840,308.37/99,960.03
  6. Step 6: Final answer
    x = 105,670.64

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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.