Home / 139,421.73-209,133.29-34,240.71

Finding the Fourth Proportional to 139,421.73, 209,133.29 and 34,240.71

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Solution

The fourth proportional to 139,421.73, 209,133.29 and 34,240.71 is: 51,361.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,421.73 : 209,133.29 = 34,240.71 : x
  2. Step 2: Convert to fraction form
    139,421.73/209,133.29 = 34,240.71/x
  3. Step 3: Cross multiply
    139,421.73x = 209,133.29 × 34,240.71
  4. Step 4: Simplify right side
    139,421.73x = 7,160,872,334.24
  5. Step 5: Solve for x
    x = 7,160,872,334.24/139,421.73
  6. Step 6: Final answer
    x = 51,361.24

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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.