Home / 139,999.46-193,195.04-76,338.50

Finding the Fourth Proportional to 139,999.46, 193,195.04 and 76,338.50

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Solution

The fourth proportional to 139,999.46, 193,195.04 and 76,338.50 is: 105,344.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,999.46 : 193,195.04 = 76,338.50 : x
  2. Step 2: Convert to fraction form
    139,999.46/193,195.04 = 76,338.50/x
  3. Step 3: Cross multiply
    139,999.46x = 193,195.04 × 76,338.50
  4. Step 4: Simplify right side
    139,999.46x = 14,748,219,561.04
  5. Step 5: Solve for x
    x = 14,748,219,561.04/139,999.46
  6. Step 6: Final answer
    x = 105,344.83

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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.