Home / 123,507.06-185,264.37-85,519.14

Finding the Fourth Proportional to 123,507.06, 185,264.37 and 85,519.14

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Solution

The fourth proportional to 123,507.06, 185,264.37 and 85,519.14 is: 128,281.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,507.06 : 185,264.37 = 85,519.14 : x
  2. Step 2: Convert to fraction form
    123,507.06/185,264.37 = 85,519.14/x
  3. Step 3: Cross multiply
    123,507.06x = 185,264.37 × 85,519.14
  4. Step 4: Simplify right side
    123,507.06x = 15,843,649,595.04
  5. Step 5: Solve for x
    x = 15,843,649,595.04/123,507.06
  6. Step 6: Final answer
    x = 128,281.33

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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.