Home / 119,428.83-164,815.77-65,717.79

Finding the Fourth Proportional to 119,428.83, 164,815.77 and 65,717.79

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Solution

The fourth proportional to 119,428.83, 164,815.77 and 65,717.79 is: 90,692.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,428.83 : 164,815.77 = 65,717.79 : x
  2. Step 2: Convert to fraction form
    119,428.83/164,815.77 = 65,717.79/x
  3. Step 3: Cross multiply
    119,428.83x = 164,815.77 × 65,717.79
  4. Step 4: Simplify right side
    119,428.83x = 10,831,328,161.55
  5. Step 5: Solve for x
    x = 10,831,328,161.55/119,428.83
  6. Step 6: Final answer
    x = 90,692.74

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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.