Home / 109,396.14-164,028.51-42,756.87

Finding the Fourth Proportional to 109,396.14, 164,028.51 and 42,756.87

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Solution

The fourth proportional to 109,396.14, 164,028.51 and 42,756.87 is: 64,109.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,396.14 : 164,028.51 = 42,756.87 : x
  2. Step 2: Convert to fraction form
    109,396.14/164,028.51 = 42,756.87/x
  3. Step 3: Cross multiply
    109,396.14x = 164,028.51 × 42,756.87
  4. Step 4: Simplify right side
    109,396.14x = 7,013,345,678.36
  5. Step 5: Solve for x
    x = 7,013,345,678.36/109,396.14
  6. Step 6: Final answer
    x = 64,109.63

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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.