Home / 154,438.60-213,149.46-111,981.64

Finding the Fourth Proportional to 154,438.60, 213,149.46 and 111,981.64

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Solution

The fourth proportional to 154,438.60, 213,149.46 and 111,981.64 is: 154,552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,438.60 : 213,149.46 = 111,981.64 : x
  2. Step 2: Convert to fraction form
    154,438.60/213,149.46 = 111,981.64/x
  3. Step 3: Cross multiply
    154,438.60x = 213,149.46 × 111,981.64
  4. Step 4: Simplify right side
    154,438.60x = 23,868,826,095.91
  5. Step 5: Solve for x
    x = 23,868,826,095.91/154,438.60
  6. Step 6: Final answer
    x = 154,552.20

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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.