Home / 180,739.17-270,740.61-85,681.22

Finding the Fourth Proportional to 180,739.17, 270,740.61 and 85,681.22

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Solution

The fourth proportional to 180,739.17, 270,740.61 and 85,681.22 is: 128,347.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,739.17 : 270,740.61 = 85,681.22 : x
  2. Step 2: Convert to fraction form
    180,739.17/270,740.61 = 85,681.22/x
  3. Step 3: Cross multiply
    180,739.17x = 270,740.61 × 85,681.22
  4. Step 4: Simplify right side
    180,739.17x = 23,197,384,414.64
  5. Step 5: Solve for x
    x = 23,197,384,414.64/180,739.17
  6. Step 6: Final answer
    x = 128,347.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.