Home / 112,106.64-154,708.32-61,807.44

Finding the Fourth Proportional to 112,106.64, 154,708.32 and 61,807.44

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Solution

The fourth proportional to 112,106.64, 154,708.32 and 61,807.44 is: 85,294.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,106.64 : 154,708.32 = 61,807.44 : x
  2. Step 2: Convert to fraction form
    112,106.64/154,708.32 = 61,807.44/x
  3. Step 3: Cross multiply
    112,106.64x = 154,708.32 × 61,807.44
  4. Step 4: Simplify right side
    112,106.64x = 9,562,125,205.90
  5. Step 5: Solve for x
    x = 9,562,125,205.90/112,106.64
  6. Step 6: Final answer
    x = 85,294.90

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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.