Home / 108,569.22-149,825.58-66,127.80

Finding the Fourth Proportional to 108,569.22, 149,825.58 and 66,127.80

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Solution

The fourth proportional to 108,569.22, 149,825.58 and 66,127.80 is: 91,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,569.22 : 149,825.58 = 66,127.80 : x
  2. Step 2: Convert to fraction form
    108,569.22/149,825.58 = 66,127.80/x
  3. Step 3: Cross multiply
    108,569.22x = 149,825.58 × 66,127.80
  4. Step 4: Simplify right side
    108,569.22x = 9,907,635,989.12
  5. Step 5: Solve for x
    x = 9,907,635,989.12/108,569.22
  6. Step 6: Final answer
    x = 91,256.40

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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.