Home / 210,849.93-291,093.21-139,437.09

Finding the Fourth Proportional to 210,849.93, 291,093.21 and 139,437.09

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Solution

The fourth proportional to 210,849.93, 291,093.21 and 139,437.09 is: 192,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,849.93 : 291,093.21 = 139,437.09 : x
  2. Step 2: Convert to fraction form
    210,849.93/291,093.21 = 139,437.09/x
  3. Step 3: Cross multiply
    210,849.93x = 291,093.21 × 139,437.09
  4. Step 4: Simplify right side
    210,849.93x = 40,589,190,121.16
  5. Step 5: Solve for x
    x = 40,589,190,121.16/210,849.93
  6. Step 6: Final answer
    x = 192,502.74

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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.