Home / 189,520.67-261,536.77-104,638.34

Finding the Fourth Proportional to 189,520.67, 261,536.77 and 104,638.34

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Solution

The fourth proportional to 189,520.67, 261,536.77 and 104,638.34 is: 144,399.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,520.67 : 261,536.77 = 104,638.34 : x
  2. Step 2: Convert to fraction form
    189,520.67/261,536.77 = 104,638.34/x
  3. Step 3: Cross multiply
    189,520.67x = 261,536.77 × 104,638.34
  4. Step 4: Simplify right side
    189,520.67x = 27,366,773,461.76
  5. Step 5: Solve for x
    x = 27,366,773,461.76/189,520.67
  6. Step 6: Final answer
    x = 144,399.94

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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.