Home / 110,869.23-152,954.23-81,867.09

Finding the Fourth Proportional to 110,869.23, 152,954.23 and 81,867.09

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Solution

The fourth proportional to 110,869.23, 152,954.23 and 81,867.09 is: 112,943.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,869.23 : 152,954.23 = 81,867.09 : x
  2. Step 2: Convert to fraction form
    110,869.23/152,954.23 = 81,867.09/x
  3. Step 3: Cross multiply
    110,869.23x = 152,954.23 × 81,867.09
  4. Step 4: Simplify right side
    110,869.23x = 12,521,917,713.29
  5. Step 5: Solve for x
    x = 12,521,917,713.29/110,869.23
  6. Step 6: Final answer
    x = 112,943.13

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1.5x scale

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.