Home / 102,966.01-142,076.63-57,645.90

Finding the Fourth Proportional to 102,966.01, 142,076.63 and 57,645.90

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Solution

The fourth proportional to 102,966.01, 142,076.63 and 57,645.90 is: 79,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,966.01 : 142,076.63 = 57,645.90 : x
  2. Step 2: Convert to fraction form
    102,966.01/142,076.63 = 57,645.90/x
  3. Step 3: Cross multiply
    102,966.01x = 142,076.63 × 57,645.90
  4. Step 4: Simplify right side
    102,966.01x = 8,190,135,749.02
  5. Step 5: Solve for x
    x = 8,190,135,749.02/102,966.01
  6. Step 6: Final answer
    x = 79,542.13

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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.