Home / 102,070.44-140,884.92-66,258.36

Finding the Fourth Proportional to 102,070.44, 140,884.92 and 66,258.36

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Solution

The fourth proportional to 102,070.44, 140,884.92 and 66,258.36 is: 91,454.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,070.44 : 140,884.92 = 66,258.36 : x
  2. Step 2: Convert to fraction form
    102,070.44/140,884.92 = 66,258.36/x
  3. Step 3: Cross multiply
    102,070.44x = 140,884.92 × 66,258.36
  4. Step 4: Simplify right side
    102,070.44x = 9,334,803,747.93
  5. Step 5: Solve for x
    x = 9,334,803,747.93/102,070.44
  6. Step 6: Final answer
    x = 91,454.53

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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.