Home / 137,025.59-189,119.37-79,682.66

Finding the Fourth Proportional to 137,025.59, 189,119.37 and 79,682.66

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Solution

The fourth proportional to 137,025.59, 189,119.37 and 79,682.66 is: 109,976.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,025.59 : 189,119.37 = 79,682.66 : x
  2. Step 2: Convert to fraction form
    137,025.59/189,119.37 = 79,682.66/x
  3. Step 3: Cross multiply
    137,025.59x = 189,119.37 × 79,682.66
  4. Step 4: Simplify right side
    137,025.59x = 15,069,534,459.12
  5. Step 5: Solve for x
    x = 15,069,534,459.12/137,025.59
  6. Step 6: Final answer
    x = 109,976.06

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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.