Home / 212,895.39-293,782.20-122,187.51

Finding the Fourth Proportional to 212,895.39, 293,782.20 and 122,187.51

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Solution

The fourth proportional to 212,895.39, 293,782.20 and 122,187.51 is: 168,611.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,895.39 : 293,782.20 = 122,187.51 : x
  2. Step 2: Convert to fraction form
    212,895.39/293,782.20 = 122,187.51/x
  3. Step 3: Cross multiply
    212,895.39x = 293,782.20 × 122,187.51
  4. Step 4: Simplify right side
    212,895.39x = 35,896,515,500.32
  5. Step 5: Solve for x
    x = 35,896,515,500.32/212,895.39
  6. Step 6: Final answer
    x = 168,611.05

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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.