Home / 165,721.61-228,599.63-104,443.79

Finding the Fourth Proportional to 165,721.61, 228,599.63 and 104,443.79

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Solution

The fourth proportional to 165,721.61, 228,599.63 and 104,443.79 is: 144,071.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,721.61 : 228,599.63 = 104,443.79 : x
  2. Step 2: Convert to fraction form
    165,721.61/228,599.63 = 104,443.79/x
  3. Step 3: Cross multiply
    165,721.61x = 228,599.63 × 104,443.79
  4. Step 4: Simplify right side
    165,721.61x = 23,875,811,641.21
  5. Step 5: Solve for x
    x = 23,875,811,641.21/165,721.61
  6. Step 6: Final answer
    x = 144,071.81

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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.