Home / 109,740.80-151,454.60-61,997.23

Finding the Fourth Proportional to 109,740.80, 151,454.60 and 61,997.23

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Solution

The fourth proportional to 109,740.80, 151,454.60 and 61,997.23 is: 85,563.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,740.80 : 151,454.60 = 61,997.23 : x
  2. Step 2: Convert to fraction form
    109,740.80/151,454.60 = 61,997.23/x
  3. Step 3: Cross multiply
    109,740.80x = 151,454.60 × 61,997.23
  4. Step 4: Simplify right side
    109,740.80x = 9,389,765,670.76
  5. Step 5: Solve for x
    x = 9,389,765,670.76/109,740.80
  6. Step 6: Final answer
    x = 85,563.12

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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.