Home / 190,050.60-285,065.58-71,719.08

Finding the Fourth Proportional to 190,050.60, 285,065.58 and 71,719.08

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Solution

The fourth proportional to 190,050.60, 285,065.58 and 71,719.08 is: 107,574.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,050.60 : 285,065.58 = 71,719.08 : x
  2. Step 2: Convert to fraction form
    190,050.60/285,065.58 = 71,719.08/x
  3. Step 3: Cross multiply
    190,050.60x = 285,065.58 × 71,719.08
  4. Step 4: Simplify right side
    190,050.60x = 20,444,641,137.27
  5. Step 5: Solve for x
    x = 20,444,641,137.27/190,050.60
  6. Step 6: Final answer
    x = 107,574.73

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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.