Home / 109,484.40-164,226.60-91,769.70

Finding the Fourth Proportional to 109,484.40, 164,226.60 and 91,769.70

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Solution

The fourth proportional to 109,484.40, 164,226.60 and 91,769.70 is: 137,654.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,484.40 : 164,226.60 = 91,769.70 : x
  2. Step 2: Convert to fraction form
    109,484.40/164,226.60 = 91,769.70/x
  3. Step 3: Cross multiply
    109,484.40x = 164,226.60 × 91,769.70
  4. Step 4: Simplify right side
    109,484.40x = 15,071,025,814.02
  5. Step 5: Solve for x
    x = 15,071,025,814.02/109,484.40
  6. Step 6: Final answer
    x = 137,654.55

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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.