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Finding the Fourth Proportional to 137,703.30, 206,117.55 and 98,337.30

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Solution

The fourth proportional to 137,703.30, 206,117.55 and 98,337.30 is: 147,193.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,703.30 : 206,117.55 = 98,337.30 : x
  2. Step 2: Convert to fraction form
    137,703.30/206,117.55 = 98,337.30/x
  3. Step 3: Cross multiply
    137,703.30x = 206,117.55 × 98,337.30
  4. Step 4: Simplify right side
    137,703.30x = 20,269,043,349.62
  5. Step 5: Solve for x
    x = 20,269,043,349.62/137,703.30
  6. Step 6: Final answer
    x = 147,193.59

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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.