Home / 147,824.86-203,968.10-84,145.90

Finding the Fourth Proportional to 147,824.86, 203,968.10 and 84,145.90

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Solution

The fourth proportional to 147,824.86, 203,968.10 and 84,145.90 is: 116,104.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,824.86 : 203,968.10 = 84,145.90 : x
  2. Step 2: Convert to fraction form
    147,824.86/203,968.10 = 84,145.90/x
  3. Step 3: Cross multiply
    147,824.86x = 203,968.10 × 84,145.90
  4. Step 4: Simplify right side
    147,824.86x = 17,163,079,345.79
  5. Step 5: Solve for x
    x = 17,163,079,345.79/147,824.86
  6. Step 6: Final answer
    x = 116,104.15

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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.