Home / 103,155.03-142,353.82-57,833.02

Finding the Fourth Proportional to 103,155.03, 142,353.82 and 57,833.02

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Solution

The fourth proportional to 103,155.03, 142,353.82 and 57,833.02 is: 79,809.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,155.03 : 142,353.82 = 57,833.02 : x
  2. Step 2: Convert to fraction form
    103,155.03/142,353.82 = 57,833.02/x
  3. Step 3: Cross multiply
    103,155.03x = 142,353.82 × 57,833.02
  4. Step 4: Simplify right side
    103,155.03x = 8,232,751,029.97
  5. Step 5: Solve for x
    x = 8,232,751,029.97/103,155.03
  6. Step 6: Final answer
    x = 79,809.50

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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.