Home / 210,205.72-290,090.01-114,718.57

Finding the Fourth Proportional to 210,205.72, 290,090.01 and 114,718.57

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Solution

The fourth proportional to 210,205.72, 290,090.01 and 114,718.57 is: 158,314.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,205.72 : 290,090.01 = 114,718.57 : x
  2. Step 2: Convert to fraction form
    210,205.72/290,090.01 = 114,718.57/x
  3. Step 3: Cross multiply
    210,205.72x = 290,090.01 × 114,718.57
  4. Step 4: Simplify right side
    210,205.72x = 33,278,711,118.49
  5. Step 5: Solve for x
    x = 33,278,711,118.49/210,205.72
  6. Step 6: Final answer
    x = 158,314.96

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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.