Home / 147,776.36-203,931.06-80,708.36

Finding the Fourth Proportional to 147,776.36, 203,931.06 and 80,708.36

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Solution

The fourth proportional to 147,776.36, 203,931.06 and 80,708.36 is: 111,377.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,776.36 : 203,931.06 = 80,708.36 : x
  2. Step 2: Convert to fraction form
    147,776.36/203,931.06 = 80,708.36/x
  3. Step 3: Cross multiply
    147,776.36x = 203,931.06 × 80,708.36
  4. Step 4: Simplify right side
    147,776.36x = 16,458,941,405.66
  5. Step 5: Solve for x
    x = 16,458,941,405.66/147,776.36
  6. Step 6: Final answer
    x = 111,377.36

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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.