Home / 145,167.75-217,751.63-39,986.73

Finding the Fourth Proportional to 145,167.75, 217,751.63 and 39,986.73

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Solution

The fourth proportional to 145,167.75, 217,751.63 and 39,986.73 is: 59,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,167.75 : 217,751.63 = 39,986.73 : x
  2. Step 2: Convert to fraction form
    145,167.75/217,751.63 = 39,986.73/x
  3. Step 3: Cross multiply
    145,167.75x = 217,751.63 × 39,986.73
  4. Step 4: Simplify right side
    145,167.75x = 8,707,175,435.94
  5. Step 5: Solve for x
    x = 8,707,175,435.94/145,167.75
  6. Step 6: Final answer
    x = 59,980.10

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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.