Home / 119,036.92-164,278.23-78,680.72

Finding the Fourth Proportional to 119,036.92, 164,278.23 and 78,680.72

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Solution

The fourth proportional to 119,036.92, 164,278.23 and 78,680.72 is: 108,584.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,036.92 : 164,278.23 = 78,680.72 : x
  2. Step 2: Convert to fraction form
    119,036.92/164,278.23 = 78,680.72/x
  3. Step 3: Cross multiply
    119,036.92x = 164,278.23 × 78,680.72
  4. Step 4: Simplify right side
    119,036.92x = 12,925,529,416.73
  5. Step 5: Solve for x
    x = 12,925,529,416.73/119,036.92
  6. Step 6: Final answer
    x = 108,584.21

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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.