Home / 141,993.08-195,943.86-81,521.18

Finding the Fourth Proportional to 141,993.08, 195,943.86 and 81,521.18

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Solution

The fourth proportional to 141,993.08, 195,943.86 and 81,521.18 is: 112,495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,993.08 : 195,943.86 = 81,521.18 : x
  2. Step 2: Convert to fraction form
    141,993.08/195,943.86 = 81,521.18/x
  3. Step 3: Cross multiply
    141,993.08x = 195,943.86 × 81,521.18
  4. Step 4: Simplify right side
    141,993.08x = 15,973,574,680.95
  5. Step 5: Solve for x
    x = 15,973,574,680.95/141,993.08
  6. Step 6: Final answer
    x = 112,495.44

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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.