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Finding the Fourth Proportional to 145,954.92, 201,429.20 and 81,444.44

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Solution

The fourth proportional to 145,954.92, 201,429.20 and 81,444.44 is: 112,399.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,954.92 : 201,429.20 = 81,444.44 : x
  2. Step 2: Convert to fraction form
    145,954.92/201,429.20 = 81,444.44/x
  3. Step 3: Cross multiply
    145,954.92x = 201,429.20 × 81,444.44
  4. Step 4: Simplify right side
    145,954.92x = 16,405,288,393.65
  5. Step 5: Solve for x
    x = 16,405,288,393.65/145,954.92
  6. Step 6: Final answer
    x = 112,399.69

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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.