Home / 105,610.13-145,742.06-57,863.69

Finding the Fourth Proportional to 105,610.13, 145,742.06 and 57,863.69

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Solution

The fourth proportional to 105,610.13, 145,742.06 and 57,863.69 is: 79,851.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,610.13 : 145,742.06 = 57,863.69 : x
  2. Step 2: Convert to fraction form
    105,610.13/145,742.06 = 57,863.69/x
  3. Step 3: Cross multiply
    105,610.13x = 145,742.06 × 57,863.69
  4. Step 4: Simplify right side
    105,610.13x = 8,433,172,795.75
  5. Step 5: Solve for x
    x = 8,433,172,795.75/105,610.13
  6. Step 6: Final answer
    x = 79,851.93

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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.