Home / 103,378.85-142,645.75-60,945.58

Finding the Fourth Proportional to 103,378.85, 142,645.75 and 60,945.58

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Solution

The fourth proportional to 103,378.85, 142,645.75 and 60,945.58 is: 84,094.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,378.85 : 142,645.75 = 60,945.58 : x
  2. Step 2: Convert to fraction form
    103,378.85/142,645.75 = 60,945.58/x
  3. Step 3: Cross multiply
    103,378.85x = 142,645.75 × 60,945.58
  4. Step 4: Simplify right side
    103,378.85x = 8,693,627,968.29
  5. Step 5: Solve for x
    x = 8,693,627,968.29/103,378.85
  6. Step 6: Final answer
    x = 84,094.84

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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.