Home / 103,116.64-142,258.44-67,293.76

Finding the Fourth Proportional to 103,116.64, 142,258.44 and 67,293.76

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Solution

The fourth proportional to 103,116.64, 142,258.44 and 67,293.76 is: 92,837.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,116.64 : 142,258.44 = 67,293.76 : x
  2. Step 2: Convert to fraction form
    103,116.64/142,258.44 = 67,293.76/x
  3. Step 3: Cross multiply
    103,116.64x = 142,258.44 × 67,293.76
  4. Step 4: Simplify right side
    103,116.64x = 9,573,105,319.33
  5. Step 5: Solve for x
    x = 9,573,105,319.33/103,116.64
  6. Step 6: Final answer
    x = 92,837.64

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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.