Home / 105,715.25-158,261.83-70,567.73

Finding the Fourth Proportional to 105,715.25, 158,261.83 and 70,567.73

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Solution

The fourth proportional to 105,715.25, 158,261.83 and 70,567.73 is: 105,643.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,715.25 : 158,261.83 = 70,567.73 : x
  2. Step 2: Convert to fraction form
    105,715.25/158,261.83 = 70,567.73/x
  3. Step 3: Cross multiply
    105,715.25x = 158,261.83 × 70,567.73
  4. Step 4: Simplify right side
    105,715.25x = 11,168,177,121.02
  5. Step 5: Solve for x
    x = 11,168,177,121.02/105,715.25
  6. Step 6: Final answer
    x = 105,643.96

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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.