Home / 104,226.13-143,779.24-65,921.16

Finding the Fourth Proportional to 104,226.13, 143,779.24 and 65,921.16

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Solution

The fourth proportional to 104,226.13, 143,779.24 and 65,921.16 is: 90,937.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,226.13 : 143,779.24 = 65,921.16 : x
  2. Step 2: Convert to fraction form
    104,226.13/143,779.24 = 65,921.16/x
  3. Step 3: Cross multiply
    104,226.13x = 143,779.24 × 65,921.16
  4. Step 4: Simplify right side
    104,226.13x = 9,478,094,906.29
  5. Step 5: Solve for x
    x = 9,478,094,906.29/104,226.13
  6. Step 6: Final answer
    x = 90,937.80

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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.