Home / 140,112.79-193,359.93-79,692.15

Finding the Fourth Proportional to 140,112.79, 193,359.93 and 79,692.15

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Solution

The fourth proportional to 140,112.79, 193,359.93 and 79,692.15 is: 109,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,112.79 : 193,359.93 = 79,692.15 : x
  2. Step 2: Convert to fraction form
    140,112.79/193,359.93 = 79,692.15/x
  3. Step 3: Cross multiply
    140,112.79x = 193,359.93 × 79,692.15
  4. Step 4: Simplify right side
    140,112.79x = 15,409,268,545.55
  5. Step 5: Solve for x
    x = 15,409,268,545.55/140,112.79
  6. Step 6: Final answer
    x = 109,977.60

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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.