Home / 117,026.28-161,514.36-76,856.58

Finding the Fourth Proportional to 117,026.28, 161,514.36 and 76,856.58

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Solution

The fourth proportional to 117,026.28, 161,514.36 and 76,856.58 is: 106,073.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,026.28 : 161,514.36 = 76,856.58 : x
  2. Step 2: Convert to fraction form
    117,026.28/161,514.36 = 76,856.58/x
  3. Step 3: Cross multiply
    117,026.28x = 161,514.36 × 76,856.58
  4. Step 4: Simplify right side
    117,026.28x = 12,413,441,330.49
  5. Step 5: Solve for x
    x = 12,413,441,330.49/117,026.28
  6. Step 6: Final answer
    x = 106,073.96

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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.