Home / 260,724.90-391,130.55-111,036.90

Finding the Fourth Proportional to 260,724.90, 391,130.55 and 111,036.90

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Solution

The fourth proportional to 260,724.90, 391,130.55 and 111,036.90 is: 166,573.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,724.90 : 391,130.55 = 111,036.90 : x
  2. Step 2: Convert to fraction form
    260,724.90/391,130.55 = 111,036.90/x
  3. Step 3: Cross multiply
    260,724.90x = 391,130.55 × 111,036.90
  4. Step 4: Simplify right side
    260,724.90x = 43,429,923,767.30
  5. Step 5: Solve for x
    x = 43,429,923,767.30/260,724.90
  6. Step 6: Final answer
    x = 166,573.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.