Home / 137,189.48-206,812.47-128,045.08

Finding the Fourth Proportional to 137,189.48, 206,812.47 and 128,045.08

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Solution

The fourth proportional to 137,189.48, 206,812.47 and 128,045.08 is: 193,027.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,189.48 : 206,812.47 = 128,045.08 : x
  2. Step 2: Convert to fraction form
    137,189.48/206,812.47 = 128,045.08/x
  3. Step 3: Cross multiply
    137,189.48x = 206,812.47 × 128,045.08
  4. Step 4: Simplify right side
    137,189.48x = 26,481,318,749.12
  5. Step 5: Solve for x
    x = 26,481,318,749.12/137,189.48
  6. Step 6: Final answer
    x = 193,027.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.