Home / 249,119.46-343,785.80-135,942.21

Finding the Fourth Proportional to 249,119.46, 343,785.80 and 135,942.21

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Solution

The fourth proportional to 249,119.46, 343,785.80 and 135,942.21 is: 187,600.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,119.46 : 343,785.80 = 135,942.21 : x
  2. Step 2: Convert to fraction form
    249,119.46/343,785.80 = 135,942.21/x
  3. Step 3: Cross multiply
    249,119.46x = 343,785.80 × 135,942.21
  4. Step 4: Simplify right side
    249,119.46x = 46,735,001,758.47
  5. Step 5: Solve for x
    x = 46,735,001,758.47/249,119.46
  6. Step 6: Final answer
    x = 187,600.77

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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.