Home / 205,126.06-307,686.61-53,309.69

Finding the Fourth Proportional to 205,126.06, 307,686.61 and 53,309.69

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Solution

The fourth proportional to 205,126.06, 307,686.61 and 53,309.69 is: 79,963.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,126.06 : 307,686.61 = 53,309.69 : x
  2. Step 2: Convert to fraction form
    205,126.06/307,686.61 = 53,309.69/x
  3. Step 3: Cross multiply
    205,126.06x = 307,686.61 × 53,309.69
  4. Step 4: Simplify right side
    205,126.06x = 16,402,677,796.25
  5. Step 5: Solve for x
    x = 16,402,677,796.25/205,126.06
  6. Step 6: Final answer
    x = 79,963.89

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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.