Home / 127,049.11-190,319.55-76,420.18

Finding the Fourth Proportional to 127,049.11, 190,319.55 and 76,420.18

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Solution

The fourth proportional to 127,049.11, 190,319.55 and 76,420.18 is: 114,477.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,049.11 : 190,319.55 = 76,420.18 : x
  2. Step 2: Convert to fraction form
    127,049.11/190,319.55 = 76,420.18/x
  3. Step 3: Cross multiply
    127,049.11x = 190,319.55 × 76,420.18
  4. Step 4: Simplify right side
    127,049.11x = 14,544,253,316.92
  5. Step 5: Solve for x
    x = 14,544,253,316.92/127,049.11
  6. Step 6: Final answer
    x = 114,477.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.