Home / 147,740.36-203,881.38-80,672.36

Finding the Fourth Proportional to 147,740.36, 203,881.38 and 80,672.36

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Solution

The fourth proportional to 147,740.36, 203,881.38 and 80,672.36 is: 111,327.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,740.36 : 203,881.38 = 80,672.36 : x
  2. Step 2: Convert to fraction form
    147,740.36/203,881.38 = 80,672.36/x
  3. Step 3: Cross multiply
    147,740.36x = 203,881.38 × 80,672.36
  4. Step 4: Simplify right side
    147,740.36x = 16,447,592,084.66
  5. Step 5: Solve for x
    x = 16,447,592,084.66/147,740.36
  6. Step 6: Final answer
    x = 111,327.68

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1.5x scale

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.