Home / 112,439.86-168,815.31-57,074.74

Finding the Fourth Proportional to 112,439.86, 168,815.31 and 57,074.74

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Solution

The fourth proportional to 112,439.86, 168,815.31 and 57,074.74 is: 85,691.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,439.86 : 168,815.31 = 57,074.74 : x
  2. Step 2: Convert to fraction form
    112,439.86/168,815.31 = 57,074.74/x
  3. Step 3: Cross multiply
    112,439.86x = 168,815.31 × 57,074.74
  4. Step 4: Simplify right side
    112,439.86x = 9,635,089,926.27
  5. Step 5: Solve for x
    x = 9,635,089,926.27/112,439.86
  6. Step 6: Final answer
    x = 85,691.05

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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.