Home / 147,389.11-221,130.39-52,617.23

Finding the Fourth Proportional to 147,389.11, 221,130.39 and 52,617.23

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Solution

The fourth proportional to 147,389.11, 221,130.39 and 52,617.23 is: 78,942.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,389.11 : 221,130.39 = 52,617.23 : x
  2. Step 2: Convert to fraction form
    147,389.11/221,130.39 = 52,617.23/x
  3. Step 3: Cross multiply
    147,389.11x = 221,130.39 × 52,617.23
  4. Step 4: Simplify right side
    147,389.11x = 11,635,268,590.62
  5. Step 5: Solve for x
    x = 11,635,268,590.62/147,389.11
  6. Step 6: Final answer
    x = 78,942.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.