Home / 115,701.24-159,671.34-65,403.48

Finding the Fourth Proportional to 115,701.24, 159,671.34 and 65,403.48

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Solution

The fourth proportional to 115,701.24, 159,671.34 and 65,403.48 is: 90,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,701.24 : 159,671.34 = 65,403.48 : x
  2. Step 2: Convert to fraction form
    115,701.24/159,671.34 = 65,403.48/x
  3. Step 3: Cross multiply
    115,701.24x = 159,671.34 × 65,403.48
  4. Step 4: Simplify right side
    115,701.24x = 10,443,061,292.26
  5. Step 5: Solve for x
    x = 10,443,061,292.26/115,701.24
  6. Step 6: Final answer
    x = 90,258.85

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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.