Home / 139,349.04-192,381.33-91,740.77

Finding the Fourth Proportional to 139,349.04, 192,381.33 and 91,740.77

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Solution

The fourth proportional to 139,349.04, 192,381.33 and 91,740.77 is: 126,654.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,349.04 : 192,381.33 = 91,740.77 : x
  2. Step 2: Convert to fraction form
    139,349.04/192,381.33 = 91,740.77/x
  3. Step 3: Cross multiply
    139,349.04x = 192,381.33 × 91,740.77
  4. Step 4: Simplify right side
    139,349.04x = 17,649,211,347.82
  5. Step 5: Solve for x
    x = 17,649,211,347.82/139,349.04
  6. Step 6: Final answer
    x = 126,654.70

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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.