Home / 140,153.14-193,409.94-76,490.38

Finding the Fourth Proportional to 140,153.14, 193,409.94 and 76,490.38

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Solution

The fourth proportional to 140,153.14, 193,409.94 and 76,490.38 is: 105,555.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,153.14 : 193,409.94 = 76,490.38 : x
  2. Step 2: Convert to fraction form
    140,153.14/193,409.94 = 76,490.38/x
  3. Step 3: Cross multiply
    140,153.14x = 193,409.94 × 76,490.38
  4. Step 4: Simplify right side
    140,153.14x = 14,793,999,806.38
  5. Step 5: Solve for x
    x = 14,793,999,806.38/140,153.14
  6. Step 6: Final answer
    x = 105,555.96

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1.5x scale

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.