Home / 189,685.08-261,762.30-104,805.72

Finding the Fourth Proportional to 189,685.08, 261,762.30 and 104,805.72

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Solution

The fourth proportional to 189,685.08, 261,762.30 and 104,805.72 is: 144,630.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,685.08 : 261,762.30 = 104,805.72 : x
  2. Step 2: Convert to fraction form
    189,685.08/261,762.30 = 104,805.72/x
  3. Step 3: Cross multiply
    189,685.08x = 261,762.30 × 104,805.72
  4. Step 4: Simplify right side
    189,685.08x = 27,434,186,320.36
  5. Step 5: Solve for x
    x = 27,434,186,320.36/189,685.08
  6. Step 6: Final answer
    x = 144,630.18

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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.