Home / 159,143.51-238,718.20-127,406.19

Finding the Fourth Proportional to 159,143.51, 238,718.20 and 127,406.19

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Solution

The fourth proportional to 159,143.51, 238,718.20 and 127,406.19 is: 191,111.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,143.51 : 238,718.20 = 127,406.19 : x
  2. Step 2: Convert to fraction form
    159,143.51/238,718.20 = 127,406.19/x
  3. Step 3: Cross multiply
    159,143.51x = 238,718.20 × 127,406.19
  4. Step 4: Simplify right side
    159,143.51x = 30,414,176,345.66
  5. Step 5: Solve for x
    x = 30,414,176,345.66/159,143.51
  6. Step 6: Final answer
    x = 191,111.63

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1.5x scale

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.