Home / 189,007.68-260,837.28-104,131.20

Finding the Fourth Proportional to 189,007.68, 260,837.28 and 104,131.20

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Solution

The fourth proportional to 189,007.68, 260,837.28 and 104,131.20 is: 143,704.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,007.68 : 260,837.28 = 104,131.20 : x
  2. Step 2: Convert to fraction form
    189,007.68/260,837.28 = 104,131.20/x
  3. Step 3: Cross multiply
    189,007.68x = 260,837.28 × 104,131.20
  4. Step 4: Simplify right side
    189,007.68x = 27,161,298,971.14
  5. Step 5: Solve for x
    x = 27,161,298,971.14/189,007.68
  6. Step 6: Final answer
    x = 143,704.74

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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.