Home / 249,278.12-343,987.80-136,100.60

Finding the Fourth Proportional to 249,278.12, 343,987.80 and 136,100.60

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Solution

The fourth proportional to 249,278.12, 343,987.80 and 136,100.60 is: 187,810.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,278.12 : 343,987.80 = 136,100.60 : x
  2. Step 2: Convert to fraction form
    249,278.12/343,987.80 = 136,100.60/x
  3. Step 3: Cross multiply
    249,278.12x = 343,987.80 × 136,100.60
  4. Step 4: Simplify right side
    249,278.12x = 46,816,945,972.68
  5. Step 5: Solve for x
    x = 46,816,945,972.68/249,278.12
  6. Step 6: Final answer
    x = 187,810.09

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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.