Home / 109,719.40-164,564.51-43,141.65

Finding the Fourth Proportional to 109,719.40, 164,564.51 and 43,141.65

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Solution

The fourth proportional to 109,719.40, 164,564.51 and 43,141.65 is: 64,706.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,719.40 : 164,564.51 = 43,141.65 : x
  2. Step 2: Convert to fraction form
    109,719.40/164,564.51 = 43,141.65/x
  3. Step 3: Cross multiply
    109,719.40x = 164,564.51 × 43,141.65
  4. Step 4: Simplify right side
    109,719.40x = 7,099,584,492.84
  5. Step 5: Solve for x
    x = 7,099,584,492.84/109,719.40
  6. Step 6: Final answer
    x = 64,706.74

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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.