Home / 147,490-203,536.20-80,422.16

Finding the Fourth Proportional to 147,490, 203,536.20 and 80,422.16

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Solution

The fourth proportional to 147,490, 203,536.20 and 80,422.16 is: 110,982.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,490 : 203,536.20 = 80,422.16 : x
  2. Step 2: Convert to fraction form
    147,490/203,536.20 = 80,422.16/x
  3. Step 3: Cross multiply
    147,490x = 203,536.20 × 80,422.16
  4. Step 4: Simplify right side
    147,490x = 16,368,820,842.19
  5. Step 5: Solve for x
    x = 16,368,820,842.19/147,490
  6. Step 6: Final answer
    x = 110,982.58

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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.