Home / 112,612.20-155,408.82-61,623.93

Finding the Fourth Proportional to 112,612.20, 155,408.82 and 61,623.93

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Solution

The fourth proportional to 112,612.20, 155,408.82 and 61,623.93 is: 85,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,612.20 : 155,408.82 = 61,623.93 : x
  2. Step 2: Convert to fraction form
    112,612.20/155,408.82 = 61,623.93/x
  3. Step 3: Cross multiply
    112,612.20x = 155,408.82 × 61,623.93
  4. Step 4: Simplify right side
    112,612.20x = 9,576,902,245.06
  5. Step 5: Solve for x
    x = 9,576,902,245.06/112,612.20
  6. Step 6: Final answer
    x = 85,043.20

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1.5x scale

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.