Home / 120,826.52-181,314.63-70,249.35

Finding the Fourth Proportional to 120,826.52, 181,314.63 and 70,249.35

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Solution

The fourth proportional to 120,826.52, 181,314.63 and 70,249.35 is: 105,417.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,826.52 : 181,314.63 = 70,249.35 : x
  2. Step 2: Convert to fraction form
    120,826.52/181,314.63 = 70,249.35/x
  3. Step 3: Cross multiply
    120,826.52x = 181,314.63 × 70,249.35
  4. Step 4: Simplify right side
    120,826.52x = 12,737,234,551.74
  5. Step 5: Solve for x
    x = 12,737,234,551.74/120,826.52
  6. Step 6: Final answer
    x = 105,417.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.