Home / 139,995.95-193,194.60-76,333.74

Finding the Fourth Proportional to 139,995.95, 193,194.60 and 76,333.74

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Solution

The fourth proportional to 139,995.95, 193,194.60 and 76,333.74 is: 105,340.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,995.95 : 193,194.60 = 76,333.74 : x
  2. Step 2: Convert to fraction form
    139,995.95/193,194.60 = 76,333.74/x
  3. Step 3: Cross multiply
    139,995.95x = 193,194.60 × 76,333.74
  4. Step 4: Simplify right side
    139,995.95x = 14,747,266,365.80
  5. Step 5: Solve for x
    x = 14,747,266,365.80/139,995.95
  6. Step 6: Final answer
    x = 105,340.66

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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.