Home / 249,140.64-343,822.40-135,969.60

Finding the Fourth Proportional to 249,140.64, 343,822.40 and 135,969.60

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Solution

The fourth proportional to 249,140.64, 343,822.40 and 135,969.60 is: 187,642.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,140.64 : 343,822.40 = 135,969.60 : x
  2. Step 2: Convert to fraction form
    249,140.64/343,822.40 = 135,969.60/x
  3. Step 3: Cross multiply
    249,140.64x = 343,822.40 × 135,969.60
  4. Step 4: Simplify right side
    249,140.64x = 46,749,394,199.04
  5. Step 5: Solve for x
    x = 46,749,394,199.04/249,140.64
  6. Step 6: Final answer
    x = 187,642.59

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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.