Home / 285,026.38-427,600.52-105,112.30

Finding the Fourth Proportional to 285,026.38, 427,600.52 and 105,112.30

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Solution

The fourth proportional to 285,026.38, 427,600.52 and 105,112.30 is: 157,690.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,026.38 : 427,600.52 = 105,112.30 : x
  2. Step 2: Convert to fraction form
    285,026.38/427,600.52 = 105,112.30/x
  3. Step 3: Cross multiply
    285,026.38x = 427,600.52 × 105,112.30
  4. Step 4: Simplify right side
    285,026.38x = 44,946,074,138.40
  5. Step 5: Solve for x
    x = 44,946,074,138.40/285,026.38
  6. Step 6: Final answer
    x = 157,690.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.