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Finding the Fourth Proportional to 134,399.88, 201,629.02 and 40,903.20

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Solution

The fourth proportional to 134,399.88, 201,629.02 and 40,903.20 is: 61,363.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,399.88 : 201,629.02 = 40,903.20 : x
  2. Step 2: Convert to fraction form
    134,399.88/201,629.02 = 40,903.20/x
  3. Step 3: Cross multiply
    134,399.88x = 201,629.02 × 40,903.20
  4. Step 4: Simplify right side
    134,399.88x = 8,247,272,130.86
  5. Step 5: Solve for x
    x = 8,247,272,130.86/134,399.88
  6. Step 6: Final answer
    x = 61,363.69

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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.