Home / 117,851.09-162,629.64-64,136.21

Finding the Fourth Proportional to 117,851.09, 162,629.64 and 64,136.21

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Solution

The fourth proportional to 117,851.09, 162,629.64 and 64,136.21 is: 88,505.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,851.09 : 162,629.64 = 64,136.21 : x
  2. Step 2: Convert to fraction form
    117,851.09/162,629.64 = 64,136.21/x
  3. Step 3: Cross multiply
    117,851.09x = 162,629.64 × 64,136.21
  4. Step 4: Simplify right side
    117,851.09x = 10,430,447,930.12
  5. Step 5: Solve for x
    x = 10,430,447,930.12/117,851.09
  6. Step 6: Final answer
    x = 88,505.32

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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.