Home / 112,145.80-154,761.46-61,844.36

Finding the Fourth Proportional to 112,145.80, 154,761.46 and 61,844.36

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Solution

The fourth proportional to 112,145.80, 154,761.46 and 61,844.36 is: 85,345.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,145.80 : 154,761.46 = 61,844.36 : x
  2. Step 2: Convert to fraction form
    112,145.80/154,761.46 = 61,844.36/x
  3. Step 3: Cross multiply
    112,145.80x = 154,761.46 × 61,844.36
  4. Step 4: Simplify right side
    112,145.80x = 9,571,123,446.37
  5. Step 5: Solve for x
    x = 9,571,123,446.37/112,145.80
  6. Step 6: Final answer
    x = 85,345.36

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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.