Home / 115,284.79-159,065.90-69,961.74

Finding the Fourth Proportional to 115,284.79, 159,065.90 and 69,961.74

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Solution

The fourth proportional to 115,284.79, 159,065.90 and 69,961.74 is: 96,530.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,284.79 : 159,065.90 = 69,961.74 : x
  2. Step 2: Convert to fraction form
    115,284.79/159,065.90 = 69,961.74/x
  3. Step 3: Cross multiply
    115,284.79x = 159,065.90 × 69,961.74
  4. Step 4: Simplify right side
    115,284.79x = 11,128,526,788.86
  5. Step 5: Solve for x
    x = 11,128,526,788.86/115,284.79
  6. Step 6: Final answer
    x = 96,530.75

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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.