Home / 161,685.03-223,132.25-90,065.10

Finding the Fourth Proportional to 161,685.03, 223,132.25 and 90,065.10

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Solution

The fourth proportional to 161,685.03, 223,132.25 and 90,065.10 is: 124,293.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,685.03 : 223,132.25 = 90,065.10 : x
  2. Step 2: Convert to fraction form
    161,685.03/223,132.25 = 90,065.10/x
  3. Step 3: Cross multiply
    161,685.03x = 223,132.25 × 90,065.10
  4. Step 4: Simplify right side
    161,685.03x = 20,096,427,959.15
  5. Step 5: Solve for x
    x = 20,096,427,959.15/161,685.03
  6. Step 6: Final answer
    x = 124,293.68

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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.