Home / 106,359.28-159,538.94-72,978.14

Finding the Fourth Proportional to 106,359.28, 159,538.94 and 72,978.14

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Solution

The fourth proportional to 106,359.28, 159,538.94 and 72,978.14 is: 109,467.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,359.28 : 159,538.94 = 72,978.14 : x
  2. Step 2: Convert to fraction form
    106,359.28/159,538.94 = 72,978.14/x
  3. Step 3: Cross multiply
    106,359.28x = 159,538.94 × 72,978.14
  4. Step 4: Simplify right side
    106,359.28x = 11,642,855,098.77
  5. Step 5: Solve for x
    x = 11,642,855,098.77/106,359.28
  6. Step 6: Final answer
    x = 109,467.22

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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.