Home / 105,357.44-145,398.67-57,610.28

Finding the Fourth Proportional to 105,357.44, 145,398.67 and 57,610.28

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Solution

The fourth proportional to 105,357.44, 145,398.67 and 57,610.28 is: 79,505.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,357.44 : 145,398.67 = 57,610.28 : x
  2. Step 2: Convert to fraction form
    105,357.44/145,398.67 = 57,610.28/x
  3. Step 3: Cross multiply
    105,357.44x = 145,398.67 × 57,610.28
  4. Step 4: Simplify right side
    105,357.44x = 8,376,458,090.33
  5. Step 5: Solve for x
    x = 8,376,458,090.33/105,357.44
  6. Step 6: Final answer
    x = 79,505.14

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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.