Home / 219,128.13-328,666.68-61,369.29

Finding the Fourth Proportional to 219,128.13, 328,666.68 and 61,369.29

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Solution

The fourth proportional to 219,128.13, 328,666.68 and 61,369.29 is: 92,046.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,128.13 : 328,666.68 = 61,369.29 : x
  2. Step 2: Convert to fraction form
    219,128.13/328,666.68 = 61,369.29/x
  3. Step 3: Cross multiply
    219,128.13x = 328,666.68 × 61,369.29
  4. Step 4: Simplify right side
    219,128.13x = 20,170,040,798.26
  5. Step 5: Solve for x
    x = 20,170,040,798.26/219,128.13
  6. Step 6: Final answer
    x = 92,046.79

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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.