Home / 101,106.73-139,526.30-55,785.05

Finding the Fourth Proportional to 101,106.73, 139,526.30 and 55,785.05

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Solution

The fourth proportional to 101,106.73, 139,526.30 and 55,785.05 is: 76,982.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,106.73 : 139,526.30 = 55,785.05 : x
  2. Step 2: Convert to fraction form
    101,106.73/139,526.30 = 55,785.05/x
  3. Step 3: Cross multiply
    101,106.73x = 139,526.30 × 55,785.05
  4. Step 4: Simplify right side
    101,106.73x = 7,783,482,057.91
  5. Step 5: Solve for x
    x = 7,783,482,057.91/101,106.73
  6. Step 6: Final answer
    x = 76,982.83

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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.