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Finding the Fourth Proportional to 108,416.30, 162,394.05 and 89,984.30

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Solution

The fourth proportional to 108,416.30, 162,394.05 and 89,984.30 is: 134,785.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,416.30 : 162,394.05 = 89,984.30 : x
  2. Step 2: Convert to fraction form
    108,416.30/162,394.05 = 89,984.30/x
  3. Step 3: Cross multiply
    108,416.30x = 162,394.05 × 89,984.30
  4. Step 4: Simplify right side
    108,416.30x = 14,612,914,913.42
  5. Step 5: Solve for x
    x = 14,612,914,913.42/108,416.30
  6. Step 6: Final answer
    x = 134,785.22

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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.