Home / 109,747.50-151,458.03-61,999.62

Finding the Fourth Proportional to 109,747.50, 151,458.03 and 61,999.62

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Solution

The fourth proportional to 109,747.50, 151,458.03 and 61,999.62 is: 85,563.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,747.50 : 151,458.03 = 61,999.62 : x
  2. Step 2: Convert to fraction form
    109,747.50/151,458.03 = 61,999.62/x
  3. Step 3: Cross multiply
    109,747.50x = 151,458.03 × 61,999.62
  4. Step 4: Simplify right side
    109,747.50x = 9,390,340,305.95
  5. Step 5: Solve for x
    x = 9,390,340,305.95/109,747.50
  6. Step 6: Final answer
    x = 85,563.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.