Home / 106,316.20-159,647.10-76,940.20

Finding the Fourth Proportional to 106,316.20, 159,647.10 and 76,940.20

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Solution

The fourth proportional to 106,316.20, 159,647.10 and 76,940.20 is: 115,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,316.20 : 159,647.10 = 76,940.20 : x
  2. Step 2: Convert to fraction form
    106,316.20/159,647.10 = 76,940.20/x
  3. Step 3: Cross multiply
    106,316.20x = 159,647.10 × 76,940.20
  4. Step 4: Simplify right side
    106,316.20x = 12,283,279,803.42
  5. Step 5: Solve for x
    x = 12,283,279,803.42/106,316.20
  6. Step 6: Final answer
    x = 115,535.35

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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.