Home / 119,135.46-164,398.79-65,423.96

Finding the Fourth Proportional to 119,135.46, 164,398.79 and 65,423.96

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Solution

The fourth proportional to 119,135.46, 164,398.79 and 65,423.96 is: 90,280.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,135.46 : 164,398.79 = 65,423.96 : x
  2. Step 2: Convert to fraction form
    119,135.46/164,398.79 = 65,423.96/x
  3. Step 3: Cross multiply
    119,135.46x = 164,398.79 × 65,423.96
  4. Step 4: Simplify right side
    119,135.46x = 10,755,618,711.89
  5. Step 5: Solve for x
    x = 10,755,618,711.89/119,135.46
  6. Step 6: Final answer
    x = 90,280.58

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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.