Home / 105,484.89-145,540.36-60,146.34

Finding the Fourth Proportional to 105,484.89, 145,540.36 and 60,146.34

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Solution

The fourth proportional to 105,484.89, 145,540.36 and 60,146.34 is: 82,985.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,484.89 : 145,540.36 = 60,146.34 : x
  2. Step 2: Convert to fraction form
    105,484.89/145,540.36 = 60,146.34/x
  3. Step 3: Cross multiply
    105,484.89x = 145,540.36 × 60,146.34
  4. Step 4: Simplify right side
    105,484.89x = 8,753,718,947.85
  5. Step 5: Solve for x
    x = 8,753,718,947.85/105,484.89
  6. Step 6: Final answer
    x = 82,985.52

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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.