Home / 103,391.78-142,670.58-58,059.46

Finding the Fourth Proportional to 103,391.78, 142,670.58 and 58,059.46

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Solution

The fourth proportional to 103,391.78, 142,670.58 and 58,059.46 is: 80,116.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,391.78 : 142,670.58 = 58,059.46 : x
  2. Step 2: Convert to fraction form
    103,391.78/142,670.58 = 58,059.46/x
  3. Step 3: Cross multiply
    103,391.78x = 142,670.58 × 58,059.46
  4. Step 4: Simplify right side
    103,391.78x = 8,283,376,119.33
  5. Step 5: Solve for x
    x = 8,283,376,119.33/103,391.78
  6. Step 6: Final answer
    x = 80,116.39

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1.5x scale

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.