Home / 139,441.04-192,459.09-91,698.86

Finding the Fourth Proportional to 139,441.04, 192,459.09 and 91,698.86

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Solution

The fourth proportional to 139,441.04, 192,459.09 and 91,698.86 is: 126,564.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,441.04 : 192,459.09 = 91,698.86 : x
  2. Step 2: Convert to fraction form
    139,441.04/192,459.09 = 91,698.86/x
  3. Step 3: Cross multiply
    139,441.04x = 192,459.09 × 91,698.86
  4. Step 4: Simplify right side
    139,441.04x = 17,648,279,149.64
  5. Step 5: Solve for x
    x = 17,648,279,149.64/139,441.04
  6. Step 6: Final answer
    x = 126,564.45

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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.