Home / 127,727.16-191,590.72-38,981.12

Finding the Fourth Proportional to 127,727.16, 191,590.72 and 38,981.12

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Solution

The fourth proportional to 127,727.16, 191,590.72 and 38,981.12 is: 58,471.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,727.16 : 191,590.72 = 38,981.12 : x
  2. Step 2: Convert to fraction form
    127,727.16/191,590.72 = 38,981.12/x
  3. Step 3: Cross multiply
    127,727.16x = 191,590.72 × 38,981.12
  4. Step 4: Simplify right side
    127,727.16x = 7,468,420,847.21
  5. Step 5: Solve for x
    x = 7,468,420,847.21/127,727.16
  6. Step 6: Final answer
    x = 58,471.67

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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.