Home / 109,039.20-163,996.20-97,666.80

Finding the Fourth Proportional to 109,039.20, 163,996.20 and 97,666.80

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Solution

The fourth proportional to 109,039.20, 163,996.20 and 97,666.80 is: 146,891.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,039.20 : 163,996.20 = 97,666.80 : x
  2. Step 2: Convert to fraction form
    109,039.20/163,996.20 = 97,666.80/x
  3. Step 3: Cross multiply
    109,039.20x = 163,996.20 × 97,666.80
  4. Step 4: Simplify right side
    109,039.20x = 16,016,984,066.16
  5. Step 5: Solve for x
    x = 16,016,984,066.16/109,039.20
  6. Step 6: Final answer
    x = 146,891.98

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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.