Home / 147,046.72-202,889.10-86,612.62

Finding the Fourth Proportional to 147,046.72, 202,889.10 and 86,612.62

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Solution

The fourth proportional to 147,046.72, 202,889.10 and 86,612.62 is: 119,504.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,046.72 : 202,889.10 = 86,612.62 : x
  2. Step 2: Convert to fraction form
    147,046.72/202,889.10 = 86,612.62/x
  3. Step 3: Cross multiply
    147,046.72x = 202,889.10 × 86,612.62
  4. Step 4: Simplify right side
    147,046.72x = 17,572,756,520.44
  5. Step 5: Solve for x
    x = 17,572,756,520.44/147,046.72
  6. Step 6: Final answer
    x = 119,504.58

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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.