Home / 140,212.80-193,496.98-76,551.05

Finding the Fourth Proportional to 140,212.80, 193,496.98 and 76,551.05

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Solution

The fourth proportional to 140,212.80, 193,496.98 and 76,551.05 is: 105,642.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,212.80 : 193,496.98 = 76,551.05 : x
  2. Step 2: Convert to fraction form
    140,212.80/193,496.98 = 76,551.05/x
  3. Step 3: Cross multiply
    140,212.80x = 193,496.98 × 76,551.05
  4. Step 4: Simplify right side
    140,212.80x = 14,812,396,990.83
  5. Step 5: Solve for x
    x = 14,812,396,990.83/140,212.80
  6. Step 6: Final answer
    x = 105,642.26

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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.