Home / 103,010.37-154,539.65-31,929.28

Finding the Fourth Proportional to 103,010.37, 154,539.65 and 31,929.28

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Solution

The fourth proportional to 103,010.37, 154,539.65 and 31,929.28 is: 47,901.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,010.37 : 154,539.65 = 31,929.28 : x
  2. Step 2: Convert to fraction form
    103,010.37/154,539.65 = 31,929.28/x
  3. Step 3: Cross multiply
    103,010.37x = 154,539.65 × 31,929.28
  4. Step 4: Simplify right side
    103,010.37x = 4,934,339,755.95
  5. Step 5: Solve for x
    x = 4,934,339,755.95/103,010.37
  6. Step 6: Final answer
    x = 47,901.39

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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.