Home / 188,217.56-259,742.40-103,332.80

Finding the Fourth Proportional to 188,217.56, 259,742.40 and 103,332.80

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Solution

The fourth proportional to 188,217.56, 259,742.40 and 103,332.80 is: 142,600.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,217.56 : 259,742.40 = 103,332.80 : x
  2. Step 2: Convert to fraction form
    188,217.56/259,742.40 = 103,332.80/x
  3. Step 3: Cross multiply
    188,217.56x = 259,742.40 × 103,332.80
  4. Step 4: Simplify right side
    188,217.56x = 26,839,909,470.72
  5. Step 5: Solve for x
    x = 26,839,909,470.72/188,217.56
  6. Step 6: Final answer
    x = 142,600.45

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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.