Home / 107,710.87-148,544.23-67,428.30

Finding the Fourth Proportional to 107,710.87, 148,544.23 and 67,428.30

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Solution

The fourth proportional to 107,710.87, 148,544.23 and 67,428.30 is: 92,990.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,710.87 : 148,544.23 = 67,428.30 : x
  2. Step 2: Convert to fraction form
    107,710.87/148,544.23 = 67,428.30/x
  3. Step 3: Cross multiply
    107,710.87x = 148,544.23 × 67,428.30
  4. Step 4: Simplify right side
    107,710.87x = 10,016,084,903.71
  5. Step 5: Solve for x
    x = 10,016,084,903.71/107,710.87
  6. Step 6: Final answer
    x = 92,990.47

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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.