Home / 103,010.28-154,539.38-31,929.14

Finding the Fourth Proportional to 103,010.28, 154,539.38 and 31,929.14

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Solution

The fourth proportional to 103,010.28, 154,539.38 and 31,929.14 is: 47,901.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,010.28 : 154,539.38 = 31,929.14 : x
  2. Step 2: Convert to fraction form
    103,010.28/154,539.38 = 31,929.14/x
  3. Step 3: Cross multiply
    103,010.28x = 154,539.38 × 31,929.14
  4. Step 4: Simplify right side
    103,010.28x = 4,934,309,339.89
  5. Step 5: Solve for x
    x = 4,934,309,339.89/103,010.28
  6. Step 6: Final answer
    x = 47,901.14

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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.