Home / 105,650.40-145,801.17-57,903.33

Finding the Fourth Proportional to 105,650.40, 145,801.17 and 57,903.33

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Solution

The fourth proportional to 105,650.40, 145,801.17 and 57,903.33 is: 79,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,650.40 : 145,801.17 = 57,903.33 : x
  2. Step 2: Convert to fraction form
    105,650.40/145,801.17 = 57,903.33/x
  3. Step 3: Cross multiply
    105,650.40x = 145,801.17 × 57,903.33
  4. Step 4: Simplify right side
    105,650.40x = 8,442,373,260.90
  5. Step 5: Solve for x
    x = 8,442,373,260.90/105,650.40
  6. Step 6: Final answer
    x = 79,908.58

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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.