Home / 105,695.64-145,858.68-57,949.02

Finding the Fourth Proportional to 105,695.64, 145,858.68 and 57,949.02

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Solution

The fourth proportional to 105,695.64, 145,858.68 and 57,949.02 is: 79,968.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,695.64 : 145,858.68 = 57,949.02 : x
  2. Step 2: Convert to fraction form
    105,695.64/145,858.68 = 57,949.02/x
  3. Step 3: Cross multiply
    105,695.64x = 145,858.68 × 57,949.02
  4. Step 4: Simplify right side
    105,695.64x = 8,452,367,564.49
  5. Step 5: Solve for x
    x = 8,452,367,564.49/105,695.64
  6. Step 6: Final answer
    x = 79,968.93

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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.