Home / 139,405.02-209,107.14-39,565.31

Finding the Fourth Proportional to 139,405.02, 209,107.14 and 39,565.31

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Solution

The fourth proportional to 139,405.02, 209,107.14 and 39,565.31 is: 59,347.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,405.02 : 209,107.14 = 39,565.31 : x
  2. Step 2: Convert to fraction form
    139,405.02/209,107.14 = 39,565.31/x
  3. Step 3: Cross multiply
    139,405.02x = 209,107.14 × 39,565.31
  4. Step 4: Simplify right side
    139,405.02x = 8,273,387,771.78
  5. Step 5: Solve for x
    x = 8,273,387,771.78/139,405.02
  6. Step 6: Final answer
    x = 59,347.85

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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.