Home / 101,629.96-140,278.98-65,818.60

Finding the Fourth Proportional to 101,629.96, 140,278.98 and 65,818.60

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Solution

The fourth proportional to 101,629.96, 140,278.98 and 65,818.60 is: 90,848.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,629.96 : 140,278.98 = 65,818.60 : x
  2. Step 2: Convert to fraction form
    101,629.96/140,278.98 = 65,818.60/x
  3. Step 3: Cross multiply
    101,629.96x = 140,278.98 × 65,818.60
  4. Step 4: Simplify right side
    101,629.96x = 9,232,966,073.03
  5. Step 5: Solve for x
    x = 9,232,966,073.03/101,629.96
  6. Step 6: Final answer
    x = 90,848.86

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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.