Home / 140,252.48-210,396-57,135.68

Finding the Fourth Proportional to 140,252.48, 210,396 and 57,135.68

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Solution

The fourth proportional to 140,252.48, 210,396 and 57,135.68 is: 85,710.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,252.48 : 210,396 = 57,135.68 : x
  2. Step 2: Convert to fraction form
    140,252.48/210,396 = 57,135.68/x
  3. Step 3: Cross multiply
    140,252.48x = 210,396 × 57,135.68
  4. Step 4: Simplify right side
    140,252.48x = 12,021,118,529.28
  5. Step 5: Solve for x
    x = 12,021,118,529.28/140,252.48
  6. Step 6: Final answer
    x = 85,710.56

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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.