Home / 142,395.84-196,486.97-120,972.15

Finding the Fourth Proportional to 142,395.84, 196,486.97 and 120,972.15

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Solution

The fourth proportional to 142,395.84, 196,486.97 and 120,972.15 is: 166,925.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,395.84 : 196,486.97 = 120,972.15 : x
  2. Step 2: Convert to fraction form
    142,395.84/196,486.97 = 120,972.15/x
  3. Step 3: Cross multiply
    142,395.84x = 196,486.97 × 120,972.15
  4. Step 4: Simplify right side
    142,395.84x = 23,769,450,603.02
  5. Step 5: Solve for x
    x = 23,769,450,603.02/142,395.84
  6. Step 6: Final answer
    x = 166,925.18

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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.