Home / 99,707.81-149,516.65-28,614.25

Finding the Fourth Proportional to 99,707.81, 149,516.65 and 28,614.25

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Solution

The fourth proportional to 99,707.81, 149,516.65 and 28,614.25 is: 42,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,707.81 : 149,516.65 = 28,614.25 : x
  2. Step 2: Convert to fraction form
    99,707.81/149,516.65 = 28,614.25/x
  3. Step 3: Cross multiply
    99,707.81x = 149,516.65 × 28,614.25
  4. Step 4: Simplify right side
    99,707.81x = 4,278,306,220.87
  5. Step 5: Solve for x
    x = 4,278,306,220.87/99,707.81
  6. Step 6: Final answer
    x = 42,908.44

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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.