Home / 109,811.04-151,538.15-61,412.42

Finding the Fourth Proportional to 109,811.04, 151,538.15 and 61,412.42

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Solution

The fourth proportional to 109,811.04, 151,538.15 and 61,412.42 is: 84,748.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,811.04 : 151,538.15 = 61,412.42 : x
  2. Step 2: Convert to fraction form
    109,811.04/151,538.15 = 61,412.42/x
  3. Step 3: Cross multiply
    109,811.04x = 151,538.15 × 61,412.42
  4. Step 4: Simplify right side
    109,811.04x = 9,306,325,046.20
  5. Step 5: Solve for x
    x = 9,306,325,046.20/109,811.04
  6. Step 6: Final answer
    x = 84,748.54

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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.