Home / 139,890.24-209,822.40-46,388.16

Finding the Fourth Proportional to 139,890.24, 209,822.40 and 46,388.16

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Solution

The fourth proportional to 139,890.24, 209,822.40 and 46,388.16 is: 69,577.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,890.24 : 209,822.40 = 46,388.16 : x
  2. Step 2: Convert to fraction form
    139,890.24/209,822.40 = 46,388.16/x
  3. Step 3: Cross multiply
    139,890.24x = 209,822.40 × 46,388.16
  4. Step 4: Simplify right side
    139,890.24x = 9,733,275,062.78
  5. Step 5: Solve for x
    x = 9,733,275,062.78/139,890.24
  6. Step 6: Final answer
    x = 69,577.94

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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.