Home / 139,760.22-209,637.80-34,579.16

Finding the Fourth Proportional to 139,760.22, 209,637.80 and 34,579.16

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Solution

The fourth proportional to 139,760.22, 209,637.80 and 34,579.16 is: 51,868.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,760.22 : 209,637.80 = 34,579.16 : x
  2. Step 2: Convert to fraction form
    139,760.22/209,637.80 = 34,579.16/x
  3. Step 3: Cross multiply
    139,760.22x = 209,637.80 × 34,579.16
  4. Step 4: Simplify right side
    139,760.22x = 7,249,099,028.25
  5. Step 5: Solve for x
    x = 7,249,099,028.25/139,760.22
  6. Step 6: Final answer
    x = 51,868.11

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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.