Home / 112,153.20-154,769.43-61,166.31

Finding the Fourth Proportional to 112,153.20, 154,769.43 and 61,166.31

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Solution

The fourth proportional to 112,153.20, 154,769.43 and 61,166.31 is: 84,408.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,153.20 : 154,769.43 = 61,166.31 : x
  2. Step 2: Convert to fraction form
    112,153.20/154,769.43 = 61,166.31/x
  3. Step 3: Cross multiply
    112,153.20x = 154,769.43 × 61,166.31
  4. Step 4: Simplify right side
    112,153.20x = 9,466,674,933.90
  5. Step 5: Solve for x
    x = 9,466,674,933.90/112,153.20
  6. Step 6: Final answer
    x = 84,408.42

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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.