Home / 106,990.14-147,651.46-64,547.76

Finding the Fourth Proportional to 106,990.14, 147,651.46 and 64,547.76

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Solution

The fourth proportional to 106,990.14, 147,651.46 and 64,547.76 is: 89,078.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,990.14 : 147,651.46 = 64,547.76 : x
  2. Step 2: Convert to fraction form
    106,990.14/147,651.46 = 64,547.76/x
  3. Step 3: Cross multiply
    106,990.14x = 147,651.46 × 64,547.76
  4. Step 4: Simplify right side
    106,990.14x = 9,530,571,003.73
  5. Step 5: Solve for x
    x = 9,530,571,003.73/106,990.14
  6. Step 6: Final answer
    x = 89,078.97

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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.