Home / 105,743.68-145,927-57,997.36

Finding the Fourth Proportional to 105,743.68, 145,927 and 57,997.36

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Solution

The fourth proportional to 105,743.68, 145,927 and 57,997.36 is: 80,036.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,743.68 : 145,927 = 57,997.36 : x
  2. Step 2: Convert to fraction form
    105,743.68/145,927 = 57,997.36/x
  3. Step 3: Cross multiply
    105,743.68x = 145,927 × 57,997.36
  4. Step 4: Simplify right side
    105,743.68x = 8,463,380,752.72
  5. Step 5: Solve for x
    x = 8,463,380,752.72/105,743.68
  6. Step 6: Final answer
    x = 80,036.75

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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.