Home / 132,000.70-198,001.05-81,262.30

Finding the Fourth Proportional to 132,000.70, 198,001.05 and 81,262.30

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Solution

The fourth proportional to 132,000.70, 198,001.05 and 81,262.30 is: 121,893.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,000.70 : 198,001.05 = 81,262.30 : x
  2. Step 2: Convert to fraction form
    132,000.70/198,001.05 = 81,262.30/x
  3. Step 3: Cross multiply
    132,000.70x = 198,001.05 × 81,262.30
  4. Step 4: Simplify right side
    132,000.70x = 16,090,020,725.42
  5. Step 5: Solve for x
    x = 16,090,020,725.42/132,000.70
  6. Step 6: Final answer
    x = 121,893.45

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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.