Home / 109,717.40-164,561.51-43,139.65

Finding the Fourth Proportional to 109,717.40, 164,561.51 and 43,139.65

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Solution

The fourth proportional to 109,717.40, 164,561.51 and 43,139.65 is: 64,703.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,717.40 : 164,561.51 = 43,139.65 : x
  2. Step 2: Convert to fraction form
    109,717.40/164,561.51 = 43,139.65/x
  3. Step 3: Cross multiply
    109,717.40x = 164,561.51 × 43,139.65
  4. Step 4: Simplify right side
    109,717.40x = 7,099,125,944.87
  5. Step 5: Solve for x
    x = 7,099,125,944.87/109,717.40
  6. Step 6: Final answer
    x = 64,703.74

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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.