Home / 189,044.24-260,705.75-137,976.12

Finding the Fourth Proportional to 189,044.24, 260,705.75 and 137,976.12

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Solution

The fourth proportional to 189,044.24, 260,705.75 and 137,976.12 is: 190,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,044.24 : 260,705.75 = 137,976.12 : x
  2. Step 2: Convert to fraction form
    189,044.24/260,705.75 = 137,976.12/x
  3. Step 3: Cross multiply
    189,044.24x = 260,705.75 × 137,976.12
  4. Step 4: Simplify right side
    189,044.24x = 35,971,167,156.81
  5. Step 5: Solve for x
    x = 35,971,167,156.81/189,044.24
  6. Step 6: Final answer
    x = 190,279.10

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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.