Home / 112,611.77-155,393.66-76,239.23

Finding the Fourth Proportional to 112,611.77, 155,393.66 and 76,239.23

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Solution

The fourth proportional to 112,611.77, 155,393.66 and 76,239.23 is: 105,202.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,611.77 : 155,393.66 = 76,239.23 : x
  2. Step 2: Convert to fraction form
    112,611.77/155,393.66 = 76,239.23/x
  3. Step 3: Cross multiply
    112,611.77x = 155,393.66 × 76,239.23
  4. Step 4: Simplify right side
    112,611.77x = 11,847,092,617.43
  5. Step 5: Solve for x
    x = 11,847,092,617.43/112,611.77
  6. Step 6: Final answer
    x = 105,202.97

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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.