Home / 137,790.81-206,725.10-54,743.13

Finding the Fourth Proportional to 137,790.81, 206,725.10 and 54,743.13

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Solution

The fourth proportional to 137,790.81, 206,725.10 and 54,743.13 is: 82,130.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,790.81 : 206,725.10 = 54,743.13 : x
  2. Step 2: Convert to fraction form
    137,790.81/206,725.10 = 54,743.13/x
  3. Step 3: Cross multiply
    137,790.81x = 206,725.10 × 54,743.13
  4. Step 4: Simplify right side
    137,790.81x = 11,316,778,749.85
  5. Step 5: Solve for x
    x = 11,316,778,749.85/137,790.81
  6. Step 6: Final answer
    x = 82,130.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.