Home / 121,928.80-182,893.20-59,720.80

Finding the Fourth Proportional to 121,928.80, 182,893.20 and 59,720.80

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Solution

The fourth proportional to 121,928.80, 182,893.20 and 59,720.80 is: 89,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,928.80 : 182,893.20 = 59,720.80 : x
  2. Step 2: Convert to fraction form
    121,928.80/182,893.20 = 59,720.80/x
  3. Step 3: Cross multiply
    121,928.80x = 182,893.20 × 59,720.80
  4. Step 4: Simplify right side
    121,928.80x = 10,922,528,218.56
  5. Step 5: Solve for x
    x = 10,922,528,218.56/121,928.80
  6. Step 6: Final answer
    x = 89,581.20

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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.