Home / 105,247.14-157,102.93-91,960.98

Finding the Fourth Proportional to 105,247.14, 157,102.93 and 91,960.98

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Solution

The fourth proportional to 105,247.14, 157,102.93 and 91,960.98 is: 137,270.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,247.14 : 157,102.93 = 91,960.98 : x
  2. Step 2: Convert to fraction form
    105,247.14/157,102.93 = 91,960.98/x
  3. Step 3: Cross multiply
    105,247.14x = 157,102.93 × 91,960.98
  4. Step 4: Simplify right side
    105,247.14x = 14,447,339,403.67
  5. Step 5: Solve for x
    x = 14,447,339,403.67/105,247.14
  6. Step 6: Final answer
    x = 137,270.61

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1.5x scale

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.