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Finding the Fourth Proportional to 168,018.30, 252,027.45 and 105,810.30

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Solution

The fourth proportional to 168,018.30, 252,027.45 and 105,810.30 is: 158,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,018.30 : 252,027.45 = 105,810.30 : x
  2. Step 2: Convert to fraction form
    168,018.30/252,027.45 = 105,810.30/x
  3. Step 3: Cross multiply
    168,018.30x = 252,027.45 × 105,810.30
  4. Step 4: Simplify right side
    168,018.30x = 26,667,100,092.74
  5. Step 5: Solve for x
    x = 26,667,100,092.74/168,018.30
  6. Step 6: Final answer
    x = 158,715.45

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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.