Home / 121,327.02-167,429.00-66,136.82

Finding the Fourth Proportional to 121,327.02, 167,429.00 and 66,136.82

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Solution

The fourth proportional to 121,327.02, 167,429.00 and 66,136.82 is: 91,267.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,327.02 : 167,429.00 = 66,136.82 : x
  2. Step 2: Convert to fraction form
    121,327.02/167,429.00 = 66,136.82/x
  3. Step 3: Cross multiply
    121,327.02x = 167,429.00 × 66,136.82
  4. Step 4: Simplify right side
    121,327.02x = 11,073,220,963.98
  5. Step 5: Solve for x
    x = 11,073,220,963.98/121,327.02
  6. Step 6: Final answer
    x = 91,267.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.