Home / 109,349.20-164,088.60-72,016.30

Finding the Fourth Proportional to 109,349.20, 164,088.60 and 72,016.30

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Solution

The fourth proportional to 109,349.20, 164,088.60 and 72,016.30 is: 108,067.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,349.20 : 164,088.60 = 72,016.30 : x
  2. Step 2: Convert to fraction form
    109,349.20/164,088.60 = 72,016.30/x
  3. Step 3: Cross multiply
    109,349.20x = 164,088.60 × 72,016.30
  4. Step 4: Simplify right side
    109,349.20x = 11,817,053,844.18
  5. Step 5: Solve for x
    x = 11,817,053,844.18/109,349.20
  6. Step 6: Final answer
    x = 108,067.13

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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.