Home / 249,143.12-343,817.39-135,965.87

Finding the Fourth Proportional to 249,143.12, 343,817.39 and 135,965.87

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Solution

The fourth proportional to 249,143.12, 343,817.39 and 135,965.87 is: 187,632.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,143.12 : 343,817.39 = 135,965.87 : x
  2. Step 2: Convert to fraction form
    249,143.12/343,817.39 = 135,965.87/x
  3. Step 3: Cross multiply
    249,143.12x = 343,817.39 × 135,965.87
  4. Step 4: Simplify right side
    249,143.12x = 46,747,432,396.60
  5. Step 5: Solve for x
    x = 46,747,432,396.60/249,143.12
  6. Step 6: Final answer
    x = 187,632.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.