Home / 112,336.36-155,048.40-76,611.52

Finding the Fourth Proportional to 112,336.36, 155,048.40 and 76,611.52

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Solution

The fourth proportional to 112,336.36, 155,048.40 and 76,611.52 is: 105,740.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,336.36 : 155,048.40 = 76,611.52 : x
  2. Step 2: Convert to fraction form
    112,336.36/155,048.40 = 76,611.52/x
  3. Step 3: Cross multiply
    112,336.36x = 155,048.40 × 76,611.52
  4. Step 4: Simplify right side
    112,336.36x = 11,878,493,597.57
  5. Step 5: Solve for x
    x = 11,878,493,597.57/112,336.36
  6. Step 6: Final answer
    x = 105,740.42

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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.