Home / 140,590.46-210,620.86-69,429.83

Finding the Fourth Proportional to 140,590.46, 210,620.86 and 69,429.83

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Solution

The fourth proportional to 140,590.46, 210,620.86 and 69,429.83 is: 104,013.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,590.46 : 210,620.86 = 69,429.83 : x
  2. Step 2: Convert to fraction form
    140,590.46/210,620.86 = 69,429.83/x
  3. Step 3: Cross multiply
    140,590.46x = 210,620.86 × 69,429.83
  4. Step 4: Simplify right side
    140,590.46x = 14,623,369,977.70
  5. Step 5: Solve for x
    x = 14,623,369,977.70/140,590.46
  6. Step 6: Final answer
    x = 104,013.96

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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.