Home / 112,147.94-154,762.20-61,161.06

Finding the Fourth Proportional to 112,147.94, 154,762.20 and 61,161.06

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Solution

The fourth proportional to 112,147.94, 154,762.20 and 61,161.06 is: 84,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,147.94 : 154,762.20 = 61,161.06 : x
  2. Step 2: Convert to fraction form
    112,147.94/154,762.20 = 61,161.06/x
  3. Step 3: Cross multiply
    112,147.94x = 154,762.20 × 61,161.06
  4. Step 4: Simplify right side
    112,147.94x = 9,465,420,199.93
  5. Step 5: Solve for x
    x = 9,465,420,199.93/112,147.94
  6. Step 6: Final answer
    x = 84,401.20

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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.