Home / 134,574.21-201,470.15-78,242.56

Finding the Fourth Proportional to 134,574.21, 201,470.15 and 78,242.56

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Solution

The fourth proportional to 134,574.21, 201,470.15 and 78,242.56 is: 117,136.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,574.21 : 201,470.15 = 78,242.56 : x
  2. Step 2: Convert to fraction form
    134,574.21/201,470.15 = 78,242.56/x
  3. Step 3: Cross multiply
    134,574.21x = 201,470.15 × 78,242.56
  4. Step 4: Simplify right side
    134,574.21x = 15,763,539,991.52
  5. Step 5: Solve for x
    x = 15,763,539,991.52/134,574.21
  6. Step 6: Final answer
    x = 117,136.41

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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.