Home / 111,941.64-154,479.06-61,640.52

Finding the Fourth Proportional to 111,941.64, 154,479.06 and 61,640.52

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Solution

The fourth proportional to 111,941.64, 154,479.06 and 61,640.52 is: 85,063.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,941.64 : 154,479.06 = 61,640.52 : x
  2. Step 2: Convert to fraction form
    111,941.64/154,479.06 = 61,640.52/x
  3. Step 3: Cross multiply
    111,941.64x = 154,479.06 × 61,640.52
  4. Step 4: Simplify right side
    111,941.64x = 9,522,169,587.51
  5. Step 5: Solve for x
    x = 9,522,169,587.51/111,941.64
  6. Step 6: Final answer
    x = 85,063.70

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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.