Home / 99,960.48-150,072.56-91,708.16

Finding the Fourth Proportional to 99,960.48, 150,072.56 and 91,708.16

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Solution

The fourth proportional to 99,960.48, 150,072.56 and 91,708.16 is: 137,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,960.48 : 150,072.56 = 91,708.16 : x
  2. Step 2: Convert to fraction form
    99,960.48/150,072.56 = 91,708.16/x
  3. Step 3: Cross multiply
    99,960.48x = 150,072.56 × 91,708.16
  4. Step 4: Simplify right side
    99,960.48x = 13,762,878,344.09
  5. Step 5: Solve for x
    x = 13,762,878,344.09/99,960.48
  6. Step 6: Final answer
    x = 137,683.20

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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.