Home / 211,521.13-291,851.94-125,436.36

Finding the Fourth Proportional to 211,521.13, 291,851.94 and 125,436.36

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Solution

The fourth proportional to 211,521.13, 291,851.94 and 125,436.36 is: 173,074.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,521.13 : 291,851.94 = 125,436.36 : x
  2. Step 2: Convert to fraction form
    211,521.13/291,851.94 = 125,436.36/x
  3. Step 3: Cross multiply
    211,521.13x = 291,851.94 × 125,436.36
  4. Step 4: Simplify right side
    211,521.13x = 36,608,845,519.00
  5. Step 5: Solve for x
    x = 36,608,845,519.00/211,521.13
  6. Step 6: Final answer
    x = 173,074.18

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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.