Home / 190,212.12-262,417.86-122,218.92

Finding the Fourth Proportional to 190,212.12, 262,417.86 and 122,218.92

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Solution

The fourth proportional to 190,212.12, 262,417.86 and 122,218.92 is: 168,614.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,212.12 : 262,417.86 = 122,218.92 : x
  2. Step 2: Convert to fraction form
    190,212.12/262,417.86 = 122,218.92/x
  3. Step 3: Cross multiply
    190,212.12x = 262,417.86 × 122,218.92
  4. Step 4: Simplify right side
    190,212.12x = 32,072,427,437.91
  5. Step 5: Solve for x
    x = 32,072,427,437.91/190,212.12
  6. Step 6: Final answer
    x = 168,614.01

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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.