Home / 109,953.20-164,929.80-74,961.20

Finding the Fourth Proportional to 109,953.20, 164,929.80 and 74,961.20

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Solution

The fourth proportional to 109,953.20, 164,929.80 and 74,961.20 is: 112,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,953.20 : 164,929.80 = 74,961.20 : x
  2. Step 2: Convert to fraction form
    109,953.20/164,929.80 = 74,961.20/x
  3. Step 3: Cross multiply
    109,953.20x = 164,929.80 × 74,961.20
  4. Step 4: Simplify right side
    109,953.20x = 12,363,335,723.76
  5. Step 5: Solve for x
    x = 12,363,335,723.76/109,953.20
  6. Step 6: Final answer
    x = 112,441.80

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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.