Home / 112,186.41-154,729.69-71,904.03

Finding the Fourth Proportional to 112,186.41, 154,729.69 and 71,904.03

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Solution

The fourth proportional to 112,186.41, 154,729.69 and 71,904.03 is: 99,171.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,186.41 : 154,729.69 = 71,904.03 : x
  2. Step 2: Convert to fraction form
    112,186.41/154,729.69 = 71,904.03/x
  3. Step 3: Cross multiply
    112,186.41x = 154,729.69 × 71,904.03
  4. Step 4: Simplify right side
    112,186.41x = 11,125,688,271.65
  5. Step 5: Solve for x
    x = 11,125,688,271.65/112,186.41
  6. Step 6: Final answer
    x = 99,171.44

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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.