Home / 88,589.22-122,153.80-72,406.30

Finding the Fourth Proportional to 88,589.22, 122,153.80 and 72,406.30

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Solution

The fourth proportional to 88,589.22, 122,153.80 and 72,406.30 is: 99,839.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,589.22 : 122,153.80 = 72,406.30 : x
  2. Step 2: Convert to fraction form
    88,589.22/122,153.80 = 72,406.30/x
  3. Step 3: Cross multiply
    88,589.22x = 122,153.80 × 72,406.30
  4. Step 4: Simplify right side
    88,589.22x = 8,844,704,688.94
  5. Step 5: Solve for x
    x = 8,844,704,688.94/88,589.22
  6. Step 6: Final answer
    x = 99,839.51

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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.