Home / 249,109.62-343,768.05-135,930.42

Finding the Fourth Proportional to 249,109.62, 343,768.05 and 135,930.42

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Solution

The fourth proportional to 249,109.62, 343,768.05 and 135,930.42 is: 187,582.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,109.62 : 343,768.05 = 135,930.42 : x
  2. Step 2: Convert to fraction form
    249,109.62/343,768.05 = 135,930.42/x
  3. Step 3: Cross multiply
    249,109.62x = 343,768.05 × 135,930.42
  4. Step 4: Simplify right side
    249,109.62x = 46,728,535,419.08
  5. Step 5: Solve for x
    x = 46,728,535,419.08/249,109.62
  6. Step 6: Final answer
    x = 187,582.22

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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.