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Finding the Fourth Proportional to 149,989.80, 225,047.24 and 65,810.46

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Solution

The fourth proportional to 149,989.80, 225,047.24 and 65,810.46 is: 98,743.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,989.80 : 225,047.24 = 65,810.46 : x
  2. Step 2: Convert to fraction form
    149,989.80/225,047.24 = 65,810.46/x
  3. Step 3: Cross multiply
    149,989.80x = 225,047.24 × 65,810.46
  4. Step 4: Simplify right side
    149,989.80x = 14,810,462,057.08
  5. Step 5: Solve for x
    x = 14,810,462,057.08/149,989.80
  6. Step 6: Final answer
    x = 98,743.13

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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.