Home / 245,032.06-338,142.90-137,611.48

Finding the Fourth Proportional to 245,032.06, 338,142.90 and 137,611.48

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Solution

The fourth proportional to 245,032.06, 338,142.90 and 137,611.48 is: 189,903.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,032.06 : 338,142.90 = 137,611.48 : x
  2. Step 2: Convert to fraction form
    245,032.06/338,142.90 = 137,611.48/x
  3. Step 3: Cross multiply
    245,032.06x = 338,142.90 × 137,611.48
  4. Step 4: Simplify right side
    245,032.06x = 46,532,344,920.49
  5. Step 5: Solve for x
    x = 46,532,344,920.49/245,032.06
  6. Step 6: Final answer
    x = 189,903.09

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1.5x scale

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.