Home / 126,921.60-190,345.32-42,672.24

Finding the Fourth Proportional to 126,921.60, 190,345.32 and 42,672.24

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Solution

The fourth proportional to 126,921.60, 190,345.32 and 42,672.24 is: 63,995.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,921.60 : 190,345.32 = 42,672.24 : x
  2. Step 2: Convert to fraction form
    126,921.60/190,345.32 = 42,672.24/x
  3. Step 3: Cross multiply
    126,921.60x = 190,345.32 × 42,672.24
  4. Step 4: Simplify right side
    126,921.60x = 8,122,461,177.92
  5. Step 5: Solve for x
    x = 8,122,461,177.92/126,921.60
  6. Step 6: Final answer
    x = 63,995.89

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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.