Home / 117,127.59-161,640.68-66,151.05

Finding the Fourth Proportional to 117,127.59, 161,640.68 and 66,151.05

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Solution

The fourth proportional to 117,127.59, 161,640.68 and 66,151.05 is: 91,291.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,127.59 : 161,640.68 = 66,151.05 : x
  2. Step 2: Convert to fraction form
    117,127.59/161,640.68 = 66,151.05/x
  3. Step 3: Cross multiply
    117,127.59x = 161,640.68 × 66,151.05
  4. Step 4: Simplify right side
    117,127.59x = 10,692,700,373.96
  5. Step 5: Solve for x
    x = 10,692,700,373.96/117,127.59
  6. Step 6: Final answer
    x = 91,291.05

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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.