Home / 219,946.51-329,925.92-77,771.69

Finding the Fourth Proportional to 219,946.51, 329,925.92 and 77,771.69

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Solution

The fourth proportional to 219,946.51, 329,925.92 and 77,771.69 is: 116,659.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,946.51 : 329,925.92 = 77,771.69 : x
  2. Step 2: Convert to fraction form
    219,946.51/329,925.92 = 77,771.69/x
  3. Step 3: Cross multiply
    219,946.51x = 329,925.92 × 77,771.69
  4. Step 4: Simplify right side
    219,946.51x = 25,658,897,974.60
  5. Step 5: Solve for x
    x = 25,658,897,974.60/219,946.51
  6. Step 6: Final answer
    x = 116,659.72

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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.