Home / 119,189.28-164,496.97-76,870.83

Finding the Fourth Proportional to 119,189.28, 164,496.97 and 76,870.83

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Solution

The fourth proportional to 119,189.28, 164,496.97 and 76,870.83 is: 106,091.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,189.28 : 164,496.97 = 76,870.83 : x
  2. Step 2: Convert to fraction form
    119,189.28/164,496.97 = 76,870.83/x
  3. Step 3: Cross multiply
    119,189.28x = 164,496.97 × 76,870.83
  4. Step 4: Simplify right side
    119,189.28x = 12,645,018,616.39
  5. Step 5: Solve for x
    x = 12,645,018,616.39/119,189.28
  6. Step 6: Final answer
    x = 106,091.91

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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.