Home / 127,212.42-190,424.97-108,316.74

Finding the Fourth Proportional to 127,212.42, 190,424.97 and 108,316.74

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Solution

The fourth proportional to 127,212.42, 190,424.97 and 108,316.74 is: 162,139.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,212.42 : 190,424.97 = 108,316.74 : x
  2. Step 2: Convert to fraction form
    127,212.42/190,424.97 = 108,316.74/x
  3. Step 3: Cross multiply
    127,212.42x = 190,424.97 × 108,316.74
  4. Step 4: Simplify right side
    127,212.42x = 20,626,211,965.00
  5. Step 5: Solve for x
    x = 20,626,211,965.00/127,212.42
  6. Step 6: Final answer
    x = 162,139.92

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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.