Home / 76,454.97-114,611.76-70,148.71

Finding the Fourth Proportional to 76,454.97, 114,611.76 and 70,148.71

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Solution

The fourth proportional to 76,454.97, 114,611.76 and 70,148.71 is: 105,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,454.97 : 114,611.76 = 70,148.71 : x
  2. Step 2: Convert to fraction form
    76,454.97/114,611.76 = 70,148.71/x
  3. Step 3: Cross multiply
    76,454.97x = 114,611.76 × 70,148.71
  4. Step 4: Simplify right side
    76,454.97x = 8,039,867,114.83
  5. Step 5: Solve for x
    x = 8,039,867,114.83/76,454.97
  6. Step 6: Final answer
    x = 105,158.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.