Home / 189,669.32-261,739.86-104,784.20

Finding the Fourth Proportional to 189,669.32, 261,739.86 and 104,784.20

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Solution

The fourth proportional to 189,669.32, 261,739.86 and 104,784.20 is: 144,600.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,669.32 : 261,739.86 = 104,784.20 : x
  2. Step 2: Convert to fraction form
    189,669.32/261,739.86 = 104,784.20/x
  3. Step 3: Cross multiply
    189,669.32x = 261,739.86 × 104,784.20
  4. Step 4: Simplify right side
    189,669.32x = 27,426,201,838.21
  5. Step 5: Solve for x
    x = 27,426,201,838.21/189,669.32
  6. Step 6: Final answer
    x = 144,600.10

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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.