Home / 117,073.92-161,641.14-76,856.07

Finding the Fourth Proportional to 117,073.92, 161,641.14 and 76,856.07

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Solution

The fourth proportional to 117,073.92, 161,641.14 and 76,856.07 is: 106,113.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,073.92 : 161,641.14 = 76,856.07 : x
  2. Step 2: Convert to fraction form
    117,073.92/161,641.14 = 76,856.07/x
  3. Step 3: Cross multiply
    117,073.92x = 161,641.14 × 76,856.07
  4. Step 4: Simplify right side
    117,073.92x = 12,423,102,770.72
  5. Step 5: Solve for x
    x = 12,423,102,770.72/117,073.92
  6. Step 6: Final answer
    x = 106,113.32

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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.