Home / 137,451.29-189,646.86-79,293.95

Finding the Fourth Proportional to 137,451.29, 189,646.86 and 79,293.95

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Solution

The fourth proportional to 137,451.29, 189,646.86 and 79,293.95 is: 109,404.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,451.29 : 189,646.86 = 79,293.95 : x
  2. Step 2: Convert to fraction form
    137,451.29/189,646.86 = 79,293.95/x
  3. Step 3: Cross multiply
    137,451.29x = 189,646.86 × 79,293.95
  4. Step 4: Simplify right side
    137,451.29x = 15,037,848,634.50
  5. Step 5: Solve for x
    x = 15,037,848,634.50/137,451.29
  6. Step 6: Final answer
    x = 109,404.93

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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.