Home / 109,868.50-151,629.77-66,851.02

Finding the Fourth Proportional to 109,868.50, 151,629.77 and 66,851.02

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Solution

The fourth proportional to 109,868.50, 151,629.77 and 66,851.02 is: 92,261.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,868.50 : 151,629.77 = 66,851.02 : x
  2. Step 2: Convert to fraction form
    109,868.50/151,629.77 = 66,851.02/x
  3. Step 3: Cross multiply
    109,868.50x = 151,629.77 × 66,851.02
  4. Step 4: Simplify right side
    109,868.50x = 10,136,605,143.53
  5. Step 5: Solve for x
    x = 10,136,605,143.53/109,868.50
  6. Step 6: Final answer
    x = 92,261.25

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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.