Home / 115,611.40-159,499.44-70,272.84

Finding the Fourth Proportional to 115,611.40, 159,499.44 and 70,272.84

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Solution

The fourth proportional to 115,611.40, 159,499.44 and 70,272.84 is: 96,949.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,611.40 : 159,499.44 = 70,272.84 : x
  2. Step 2: Convert to fraction form
    115,611.40/159,499.44 = 70,272.84/x
  3. Step 3: Cross multiply
    115,611.40x = 159,499.44 × 70,272.84
  4. Step 4: Simplify right side
    115,611.40x = 11,208,478,328.15
  5. Step 5: Solve for x
    x = 11,208,478,328.15/115,611.40
  6. Step 6: Final answer
    x = 96,949.59

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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.