Home / 122,568.80-183,853.20-69,983.60

Finding the Fourth Proportional to 122,568.80, 183,853.20 and 69,983.60

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Solution

The fourth proportional to 122,568.80, 183,853.20 and 69,983.60 is: 104,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,568.80 : 183,853.20 = 69,983.60 : x
  2. Step 2: Convert to fraction form
    122,568.80/183,853.20 = 69,983.60/x
  3. Step 3: Cross multiply
    122,568.80x = 183,853.20 × 69,983.60
  4. Step 4: Simplify right side
    122,568.80x = 12,866,708,807.52
  5. Step 5: Solve for x
    x = 12,866,708,807.52/122,568.80
  6. Step 6: Final answer
    x = 104,975.40

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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.