Home / 134,772.40-202,288.20-68,287.60

Finding the Fourth Proportional to 134,772.40, 202,288.20 and 68,287.60

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Solution

The fourth proportional to 134,772.40, 202,288.20 and 68,287.60 is: 102,497.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,772.40 : 202,288.20 = 68,287.60 : x
  2. Step 2: Convert to fraction form
    134,772.40/202,288.20 = 68,287.60/x
  3. Step 3: Cross multiply
    134,772.40x = 202,288.20 × 68,287.60
  4. Step 4: Simplify right side
    134,772.40x = 13,813,775,686.32
  5. Step 5: Solve for x
    x = 13,813,775,686.32/134,772.40
  6. Step 6: Final answer
    x = 102,497.07

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1.5x scale

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.