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Finding the Fourth Proportional to 145,665.92, 201,005.28 and 107,446.28

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Solution

The fourth proportional to 145,665.92, 201,005.28 and 107,446.28 is: 148,265.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,665.92 : 201,005.28 = 107,446.28 : x
  2. Step 2: Convert to fraction form
    145,665.92/201,005.28 = 107,446.28/x
  3. Step 3: Cross multiply
    145,665.92x = 201,005.28 × 107,446.28
  4. Step 4: Simplify right side
    145,665.92x = 21,597,269,596.36
  5. Step 5: Solve for x
    x = 21,597,269,596.36/145,665.92
  6. Step 6: Final answer
    x = 148,265.77

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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.