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Finding the Fourth Proportional to 134,751.20, 202,126.80 and 45,975.20

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Solution

The fourth proportional to 134,751.20, 202,126.80 and 45,975.20 is: 68,962.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,751.20 : 202,126.80 = 45,975.20 : x
  2. Step 2: Convert to fraction form
    134,751.20/202,126.80 = 45,975.20/x
  3. Step 3: Cross multiply
    134,751.20x = 202,126.80 × 45,975.20
  4. Step 4: Simplify right side
    134,751.20x = 9,292,820,055.36
  5. Step 5: Solve for x
    x = 9,292,820,055.36/134,751.20
  6. Step 6: Final answer
    x = 68,962.80

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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.