Home / 131,674.14-197,511.21-72,479.34

Finding the Fourth Proportional to 131,674.14, 197,511.21 and 72,479.34

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Solution

The fourth proportional to 131,674.14, 197,511.21 and 72,479.34 is: 108,719.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,674.14 : 197,511.21 = 72,479.34 : x
  2. Step 2: Convert to fraction form
    131,674.14/197,511.21 = 72,479.34/x
  3. Step 3: Cross multiply
    131,674.14x = 197,511.21 × 72,479.34
  4. Step 4: Simplify right side
    131,674.14x = 14,315,482,143.40
  5. Step 5: Solve for x
    x = 14,315,482,143.40/131,674.14
  6. Step 6: Final answer
    x = 108,719.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.