Home / 149,191.04-205,887.94-81,212.42

Finding the Fourth Proportional to 149,191.04, 205,887.94 and 81,212.42

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Solution

The fourth proportional to 149,191.04, 205,887.94 and 81,212.42 is: 112,075.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,191.04 : 205,887.94 = 81,212.42 : x
  2. Step 2: Convert to fraction form
    149,191.04/205,887.94 = 81,212.42/x
  3. Step 3: Cross multiply
    149,191.04x = 205,887.94 × 81,212.42
  4. Step 4: Simplify right side
    149,191.04x = 16,720,657,856.21
  5. Step 5: Solve for x
    x = 16,720,657,856.21/149,191.04
  6. Step 6: Final answer
    x = 112,075.48

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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.