Home / 115,566.43-159,530.79-70,258.88

Finding the Fourth Proportional to 115,566.43, 159,530.79 and 70,258.88

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Solution

The fourth proportional to 115,566.43, 159,530.79 and 70,258.88 is: 96,987.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,566.43 : 159,530.79 = 70,258.88 : x
  2. Step 2: Convert to fraction form
    115,566.43/159,530.79 = 70,258.88/x
  3. Step 3: Cross multiply
    115,566.43x = 159,530.79 × 70,258.88
  4. Step 4: Simplify right side
    115,566.43x = 11,208,454,630.92
  5. Step 5: Solve for x
    x = 11,208,454,630.92/115,566.43
  6. Step 6: Final answer
    x = 96,987.11

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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.