Home / 137,450.29-189,645.48-79,292.95

Finding the Fourth Proportional to 137,450.29, 189,645.48 and 79,292.95

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Solution

The fourth proportional to 137,450.29, 189,645.48 and 79,292.95 is: 109,403.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,450.29 : 189,645.48 = 79,292.95 : x
  2. Step 2: Convert to fraction form
    137,450.29/189,645.48 = 79,292.95/x
  3. Step 3: Cross multiply
    137,450.29x = 189,645.48 × 79,292.95
  4. Step 4: Simplify right side
    137,450.29x = 15,037,549,399.62
  5. Step 5: Solve for x
    x = 15,037,549,399.62/137,450.29
  6. Step 6: Final answer
    x = 109,403.55

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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.