Home / 139,944.12-193,122.93-79,514.85

Finding the Fourth Proportional to 139,944.12, 193,122.93 and 79,514.85

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Solution

The fourth proportional to 139,944.12, 193,122.93 and 79,514.85 is: 109,730.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,944.12 : 193,122.93 = 79,514.85 : x
  2. Step 2: Convert to fraction form
    139,944.12/193,122.93 = 79,514.85/x
  3. Step 3: Cross multiply
    139,944.12x = 193,122.93 × 79,514.85
  4. Step 4: Simplify right side
    139,944.12x = 15,356,140,810.51
  5. Step 5: Solve for x
    x = 15,356,140,810.51/139,944.12
  6. Step 6: Final answer
    x = 109,730.52

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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.