Home / 189,586.98-261,646.30-104,720.45

Finding the Fourth Proportional to 189,586.98, 261,646.30 and 104,720.45

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Solution

The fourth proportional to 189,586.98, 261,646.30 and 104,720.45 is: 144,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,586.98 : 261,646.30 = 104,720.45 : x
  2. Step 2: Convert to fraction form
    189,586.98/261,646.30 = 104,720.45/x
  3. Step 3: Cross multiply
    189,586.98x = 261,646.30 × 104,720.45
  4. Step 4: Simplify right side
    189,586.98x = 27,399,717,099.50
  5. Step 5: Solve for x
    x = 27,399,717,099.50/189,586.98
  6. Step 6: Final answer
    x = 144,523.20

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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.