Home / 105,247.12-157,102.93-91,960.96

Finding the Fourth Proportional to 105,247.12, 157,102.93 and 91,960.96

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Solution

The fourth proportional to 105,247.12, 157,102.93 and 91,960.96 is: 137,270.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,247.12 : 157,102.93 = 91,960.96 : x
  2. Step 2: Convert to fraction form
    105,247.12/157,102.93 = 91,960.96/x
  3. Step 3: Cross multiply
    105,247.12x = 157,102.93 × 91,960.96
  4. Step 4: Simplify right side
    105,247.12x = 14,447,336,261.61
  5. Step 5: Solve for x
    x = 14,447,336,261.61/105,247.12
  6. Step 6: Final answer
    x = 137,270.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.