Home / 137,416.82-189,592.17-76,979.30

Finding the Fourth Proportional to 137,416.82, 189,592.17 and 76,979.30

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Solution

The fourth proportional to 137,416.82, 189,592.17 and 76,979.30 is: 106,207.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,416.82 : 189,592.17 = 76,979.30 : x
  2. Step 2: Convert to fraction form
    137,416.82/189,592.17 = 76,979.30/x
  3. Step 3: Cross multiply
    137,416.82x = 189,592.17 × 76,979.30
  4. Step 4: Simplify right side
    137,416.82x = 14,594,672,532.08
  5. Step 5: Solve for x
    x = 14,594,672,532.08/137,416.82
  6. Step 6: Final answer
    x = 106,207.32

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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.