Home / 121,266.90-166,136.44-116,721.56

Finding the Fourth Proportional to 121,266.90, 166,136.44 and 116,721.56

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Solution

The fourth proportional to 121,266.90, 166,136.44 and 116,721.56 is: 159,909.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,266.90 : 166,136.44 = 116,721.56 : x
  2. Step 2: Convert to fraction form
    121,266.90/166,136.44 = 116,721.56/x
  3. Step 3: Cross multiply
    121,266.90x = 166,136.44 × 116,721.56
  4. Step 4: Simplify right side
    121,266.90x = 19,391,704,449.65
  5. Step 5: Solve for x
    x = 19,391,704,449.65/121,266.90
  6. Step 6: Final answer
    x = 159,909.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.