Home / 153,635.43-230,286.59-78,652.72

Finding the Fourth Proportional to 153,635.43, 230,286.59 and 78,652.72

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Solution

The fourth proportional to 153,635.43, 230,286.59 and 78,652.72 is: 117,893.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,635.43 : 230,286.59 = 78,652.72 : x
  2. Step 2: Convert to fraction form
    153,635.43/230,286.59 = 78,652.72/x
  3. Step 3: Cross multiply
    153,635.43x = 230,286.59 × 78,652.72
  4. Step 4: Simplify right side
    153,635.43x = 18,112,666,683.02
  5. Step 5: Solve for x
    x = 18,112,666,683.02/153,635.43
  6. Step 6: Final answer
    x = 117,893.81

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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.