Home / 102,724.56-141,754.80-57,393.60

Finding the Fourth Proportional to 102,724.56, 141,754.80 and 57,393.60

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Solution

The fourth proportional to 102,724.56, 141,754.80 and 57,393.60 is: 79,200.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,724.56 : 141,754.80 = 57,393.60 : x
  2. Step 2: Convert to fraction form
    102,724.56/141,754.80 = 57,393.60/x
  3. Step 3: Cross multiply
    102,724.56x = 141,754.80 × 57,393.60
  4. Step 4: Simplify right side
    102,724.56x = 8,135,818,289.28
  5. Step 5: Solve for x
    x = 8,135,818,289.28/102,724.56
  6. Step 6: Final answer
    x = 79,200.32

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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.