Home / 102,351.24-141,255.12-57,036.60

Finding the Fourth Proportional to 102,351.24, 141,255.12 and 57,036.60

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Solution

The fourth proportional to 102,351.24, 141,255.12 and 57,036.60 is: 78,716.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,351.24 : 141,255.12 = 57,036.60 : x
  2. Step 2: Convert to fraction form
    102,351.24/141,255.12 = 57,036.60/x
  3. Step 3: Cross multiply
    102,351.24x = 141,255.12 × 57,036.60
  4. Step 4: Simplify right side
    102,351.24x = 8,056,711,777.39
  5. Step 5: Solve for x
    x = 8,056,711,777.39/102,351.24
  6. Step 6: Final answer
    x = 78,716.31

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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.