Home / 109,111.11-150,571.87-61,364.45

Finding the Fourth Proportional to 109,111.11, 150,571.87 and 61,364.45

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Solution

The fourth proportional to 109,111.11, 150,571.87 and 61,364.45 is: 84,682.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,111.11 : 150,571.87 = 61,364.45 : x
  2. Step 2: Convert to fraction form
    109,111.11/150,571.87 = 61,364.45/x
  3. Step 3: Cross multiply
    109,111.11x = 150,571.87 × 61,364.45
  4. Step 4: Simplify right side
    109,111.11x = 9,239,759,988.02
  5. Step 5: Solve for x
    x = 9,239,759,988.02/109,111.11
  6. Step 6: Final answer
    x = 84,682.12

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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.