Home / 88,588.22-122,152.43-72,405.30

Finding the Fourth Proportional to 88,588.22, 122,152.43 and 72,405.30

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Solution

The fourth proportional to 88,588.22, 122,152.43 and 72,405.30 is: 99,838.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,588.22 : 122,152.43 = 72,405.30 : x
  2. Step 2: Convert to fraction form
    88,588.22/122,152.43 = 72,405.30/x
  3. Step 3: Cross multiply
    88,588.22x = 122,152.43 × 72,405.30
  4. Step 4: Simplify right side
    88,588.22x = 8,844,482,977.85
  5. Step 5: Solve for x
    x = 8,844,482,977.85/88,588.22
  6. Step 6: Final answer
    x = 99,838.14

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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.