Home / 137,534.28-189,797.99-77,107.47

Finding the Fourth Proportional to 137,534.28, 189,797.99 and 77,107.47

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Solution

The fourth proportional to 137,534.28, 189,797.99 and 77,107.47 is: 106,408.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,534.28 : 189,797.99 = 77,107.47 : x
  2. Step 2: Convert to fraction form
    137,534.28/189,797.99 = 77,107.47/x
  3. Step 3: Cross multiply
    137,534.28x = 189,797.99 × 77,107.47
  4. Step 4: Simplify right side
    137,534.28x = 14,634,842,434.45
  5. Step 5: Solve for x
    x = 14,634,842,434.45/137,534.28
  6. Step 6: Final answer
    x = 106,408.69

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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.