Home / 112,922.88-155,840.64-65,184.96

Finding the Fourth Proportional to 112,922.88, 155,840.64 and 65,184.96

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Solution

The fourth proportional to 112,922.88, 155,840.64 and 65,184.96 is: 89,959.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,922.88 : 155,840.64 = 65,184.96 : x
  2. Step 2: Convert to fraction form
    112,922.88/155,840.64 = 65,184.96/x
  3. Step 3: Cross multiply
    112,922.88x = 155,840.64 × 65,184.96
  4. Step 4: Simplify right side
    112,922.88x = 10,158,465,884.77
  5. Step 5: Solve for x
    x = 10,158,465,884.77/112,922.88
  6. Step 6: Final answer
    x = 89,959.32

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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.