Home / 139,423.07-209,134.15-39,583.33

Finding the Fourth Proportional to 139,423.07, 209,134.15 and 39,583.33

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Solution

The fourth proportional to 139,423.07, 209,134.15 and 39,583.33 is: 59,374.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,423.07 : 209,134.15 = 39,583.33 : x
  2. Step 2: Convert to fraction form
    139,423.07/209,134.15 = 39,583.33/x
  3. Step 3: Cross multiply
    139,423.07x = 209,134.15 × 39,583.33
  4. Step 4: Simplify right side
    139,423.07x = 8,278,226,073.72
  5. Step 5: Solve for x
    x = 8,278,226,073.72/139,423.07
  6. Step 6: Final answer
    x = 59,374.87

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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.