Home / 102,055.62-140,825.73-56,735.55

Finding the Fourth Proportional to 102,055.62, 140,825.73 and 56,735.55

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Solution

The fourth proportional to 102,055.62, 140,825.73 and 56,735.55 is: 78,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,055.62 : 140,825.73 = 56,735.55 : x
  2. Step 2: Convert to fraction form
    102,055.62/140,825.73 = 56,735.55/x
  3. Step 3: Cross multiply
    102,055.62x = 140,825.73 × 56,735.55
  4. Step 4: Simplify right side
    102,055.62x = 7,989,825,245.70
  5. Step 5: Solve for x
    x = 7,989,825,245.70/102,055.62
  6. Step 6: Final answer
    x = 78,288.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.