Home / 199,412.32-275,176.56-109,990.24

Finding the Fourth Proportional to 199,412.32, 275,176.56 and 109,990.24

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Solution

The fourth proportional to 199,412.32, 275,176.56 and 109,990.24 is: 151,779.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,412.32 : 275,176.56 = 109,990.24 : x
  2. Step 2: Convert to fraction form
    199,412.32/275,176.56 = 109,990.24/x
  3. Step 3: Cross multiply
    199,412.32x = 275,176.56 × 109,990.24
  4. Step 4: Simplify right side
    199,412.32x = 30,266,735,876.77
  5. Step 5: Solve for x
    x = 30,266,735,876.77/199,412.32
  6. Step 6: Final answer
    x = 151,779.67

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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.