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Finding the Fourth Proportional to 106,392.18, 159,649.10 and 53,805.54

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Solution

The fourth proportional to 106,392.18, 159,649.10 and 53,805.54 is: 80,739.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,392.18 : 159,649.10 = 53,805.54 : x
  2. Step 2: Convert to fraction form
    106,392.18/159,649.10 = 53,805.54/x
  3. Step 3: Cross multiply
    106,392.18x = 159,649.10 × 53,805.54
  4. Step 4: Simplify right side
    106,392.18x = 8,590,006,036.01
  5. Step 5: Solve for x
    x = 8,590,006,036.01/106,392.18
  6. Step 6: Final answer
    x = 80,739.07

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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.