Home / 118,651.29-177,984.81-39,766.20

Finding the Fourth Proportional to 118,651.29, 177,984.81 and 39,766.20

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Solution

The fourth proportional to 118,651.29, 177,984.81 and 39,766.20 is: 59,651.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,651.29 : 177,984.81 = 39,766.20 : x
  2. Step 2: Convert to fraction form
    118,651.29/177,984.81 = 39,766.20/x
  3. Step 3: Cross multiply
    118,651.29x = 177,984.81 × 39,766.20
  4. Step 4: Simplify right side
    118,651.29x = 7,077,779,551.42
  5. Step 5: Solve for x
    x = 7,077,779,551.42/118,651.29
  6. Step 6: Final answer
    x = 59,651.94

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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.