Home / 138,994.19-208,491.29-33,812.25

Finding the Fourth Proportional to 138,994.19, 208,491.29 and 33,812.25

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Solution

The fourth proportional to 138,994.19, 208,491.29 and 33,812.25 is: 50,718.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,994.19 : 208,491.29 = 33,812.25 : x
  2. Step 2: Convert to fraction form
    138,994.19/208,491.29 = 33,812.25/x
  3. Step 3: Cross multiply
    138,994.19x = 208,491.29 × 33,812.25
  4. Step 4: Simplify right side
    138,994.19x = 7,049,559,451.24
  5. Step 5: Solve for x
    x = 7,049,559,451.24/138,994.19
  6. Step 6: Final answer
    x = 50,718.38

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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.