Home / 99,596.20-149,390.70-40,430.20

Finding the Fourth Proportional to 99,596.20, 149,390.70 and 40,430.20

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Solution

The fourth proportional to 99,596.20, 149,390.70 and 40,430.20 is: 60,643.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,596.20 : 149,390.70 = 40,430.20 : x
  2. Step 2: Convert to fraction form
    99,596.20/149,390.70 = 40,430.20/x
  3. Step 3: Cross multiply
    99,596.20x = 149,390.70 × 40,430.20
  4. Step 4: Simplify right side
    99,596.20x = 6,039,895,879.14
  5. Step 5: Solve for x
    x = 6,039,895,879.14/99,596.20
  6. Step 6: Final answer
    x = 60,643.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.