Home / 109,308.28-163,962.45-84,384.71

Finding the Fourth Proportional to 109,308.28, 163,962.45 and 84,384.71

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Solution

The fourth proportional to 109,308.28, 163,962.45 and 84,384.71 is: 126,577.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,308.28 : 163,962.45 = 84,384.71 : x
  2. Step 2: Convert to fraction form
    109,308.28/163,962.45 = 84,384.71/x
  3. Step 3: Cross multiply
    109,308.28x = 163,962.45 × 84,384.71
  4. Step 4: Simplify right side
    109,308.28x = 13,835,924,204.05
  5. Step 5: Solve for x
    x = 13,835,924,204.05/109,308.28
  6. Step 6: Final answer
    x = 126,577.09

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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.