Home / 109,428.20-164,142.30-93,681.80

Finding the Fourth Proportional to 109,428.20, 164,142.30 and 93,681.80

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Solution

The fourth proportional to 109,428.20, 164,142.30 and 93,681.80 is: 140,522.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,428.20 : 164,142.30 = 93,681.80 : x
  2. Step 2: Convert to fraction form
    109,428.20/164,142.30 = 93,681.80/x
  3. Step 3: Cross multiply
    109,428.20x = 164,142.30 × 93,681.80
  4. Step 4: Simplify right side
    109,428.20x = 15,377,146,120.14
  5. Step 5: Solve for x
    x = 15,377,146,120.14/109,428.20
  6. Step 6: Final answer
    x = 140,522.70

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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.