Home / 84,966.70-127,450.05-71,142.70

Finding the Fourth Proportional to 84,966.70, 127,450.05 and 71,142.70

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Solution

The fourth proportional to 84,966.70, 127,450.05 and 71,142.70 is: 106,714.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,966.70 : 127,450.05 = 71,142.70 : x
  2. Step 2: Convert to fraction form
    84,966.70/127,450.05 = 71,142.70/x
  3. Step 3: Cross multiply
    84,966.70x = 127,450.05 × 71,142.70
  4. Step 4: Simplify right side
    84,966.70x = 9,067,140,672.14
  5. Step 5: Solve for x
    x = 9,067,140,672.14/84,966.70
  6. Step 6: Final answer
    x = 106,714.05

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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.