Home / 210,922.14-315,880.02-134,781.36

Finding the Fourth Proportional to 210,922.14, 315,880.02 and 134,781.36

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Solution

The fourth proportional to 210,922.14, 315,880.02 and 134,781.36 is: 201,850.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,922.14 : 315,880.02 = 134,781.36 : x
  2. Step 2: Convert to fraction form
    210,922.14/315,880.02 = 134,781.36/x
  3. Step 3: Cross multiply
    210,922.14x = 315,880.02 × 134,781.36
  4. Step 4: Simplify right side
    210,922.14x = 42,574,738,692.43
  5. Step 5: Solve for x
    x = 42,574,738,692.43/210,922.14
  6. Step 6: Final answer
    x = 201,850.50

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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.