Home / 140,123.76-193,375.45-76,465.05

Finding the Fourth Proportional to 140,123.76, 193,375.45 and 76,465.05

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Solution

The fourth proportional to 140,123.76, 193,375.45 and 76,465.05 is: 105,524.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,123.76 : 193,375.45 = 76,465.05 : x
  2. Step 2: Convert to fraction form
    140,123.76/193,375.45 = 76,465.05/x
  3. Step 3: Cross multiply
    140,123.76x = 193,375.45 × 76,465.05
  4. Step 4: Simplify right side
    140,123.76x = 14,786,463,453.02
  5. Step 5: Solve for x
    x = 14,786,463,453.02/140,123.76
  6. Step 6: Final answer
    x = 105,524.31

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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.