Home / 126,921.12-190,247.70-42,601.32

Finding the Fourth Proportional to 126,921.12, 190,247.70 and 42,601.32

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Solution

The fourth proportional to 126,921.12, 190,247.70 and 42,601.32 is: 63,857.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,921.12 : 190,247.70 = 42,601.32 : x
  2. Step 2: Convert to fraction form
    126,921.12/190,247.70 = 42,601.32/x
  3. Step 3: Cross multiply
    126,921.12x = 190,247.70 × 42,601.32
  4. Step 4: Simplify right side
    126,921.12x = 8,104,803,146.96
  5. Step 5: Solve for x
    x = 8,104,803,146.96/126,921.12
  6. Step 6: Final answer
    x = 63,857.01

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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.