Home / 147,409.56-203,425.20-80,341.56

Finding the Fourth Proportional to 147,409.56, 203,425.20 and 80,341.56

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Solution

The fourth proportional to 147,409.56, 203,425.20 and 80,341.56 is: 110,871.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,409.56 : 203,425.20 = 80,341.56 : x
  2. Step 2: Convert to fraction form
    147,409.56/203,425.20 = 80,341.56/x
  3. Step 3: Cross multiply
    147,409.56x = 203,425.20 × 80,341.56
  4. Step 4: Simplify right side
    147,409.56x = 16,343,497,911.31
  5. Step 5: Solve for x
    x = 16,343,497,911.31/147,409.56
  6. Step 6: Final answer
    x = 110,871.36

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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.