Home / 188,820.28-260,653.62-135,011.80

Finding the Fourth Proportional to 188,820.28, 260,653.62 and 135,011.80

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Solution

The fourth proportional to 188,820.28, 260,653.62 and 135,011.80 is: 186,374.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,820.28 : 260,653.62 = 135,011.80 : x
  2. Step 2: Convert to fraction form
    188,820.28/260,653.62 = 135,011.80/x
  3. Step 3: Cross multiply
    188,820.28x = 260,653.62 × 135,011.80
  4. Step 4: Simplify right side
    188,820.28x = 35,191,314,412.72
  5. Step 5: Solve for x
    x = 35,191,314,412.72/188,820.28
  6. Step 6: Final answer
    x = 186,374.65

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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.