Home / 134,975.20-202,549.20-78,815.20

Finding the Fourth Proportional to 134,975.20, 202,549.20 and 78,815.20

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Solution

The fourth proportional to 134,975.20, 202,549.20 and 78,815.20 is: 118,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,975.20 : 202,549.20 = 78,815.20 : x
  2. Step 2: Convert to fraction form
    134,975.20/202,549.20 = 78,815.20/x
  3. Step 3: Cross multiply
    134,975.20x = 202,549.20 × 78,815.20
  4. Step 4: Simplify right side
    134,975.20x = 15,963,955,707.84
  5. Step 5: Solve for x
    x = 15,963,955,707.84/134,975.20
  6. Step 6: Final answer
    x = 118,273.25

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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.