Home / 109,490.40-164,122.20-59,464.80

Finding the Fourth Proportional to 109,490.40, 164,122.20 and 59,464.80

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Solution

The fourth proportional to 109,490.40, 164,122.20 and 59,464.80 is: 89,135.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,490.40 : 164,122.20 = 59,464.80 : x
  2. Step 2: Convert to fraction form
    109,490.40/164,122.20 = 59,464.80/x
  3. Step 3: Cross multiply
    109,490.40x = 164,122.20 × 59,464.80
  4. Step 4: Simplify right side
    109,490.40x = 9,759,493,798.56
  5. Step 5: Solve for x
    x = 9,759,493,798.56/109,490.40
  6. Step 6: Final answer
    x = 89,135.61

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1.5x scale

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.