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Finding the Fourth Proportional to 107,999.70, 161,999.55 and 101,433.30

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Solution

The fourth proportional to 107,999.70, 161,999.55 and 101,433.30 is: 152,149.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,999.70 : 161,999.55 = 101,433.30 : x
  2. Step 2: Convert to fraction form
    107,999.70/161,999.55 = 101,433.30/x
  3. Step 3: Cross multiply
    107,999.70x = 161,999.55 × 101,433.30
  4. Step 4: Simplify right side
    107,999.70x = 16,432,148,955.02
  5. Step 5: Solve for x
    x = 16,432,148,955.02/107,999.70
  6. Step 6: Final answer
    x = 152,149.95

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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.