Home / 210,420.72-290,375.91-114,927.75

Finding the Fourth Proportional to 210,420.72, 290,375.91 and 114,927.75

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Solution

The fourth proportional to 210,420.72, 290,375.91 and 114,927.75 is: 158,597.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,420.72 : 290,375.91 = 114,927.75 : x
  2. Step 2: Convert to fraction form
    210,420.72/290,375.91 = 114,927.75/x
  3. Step 3: Cross multiply
    210,420.72x = 290,375.91 × 114,927.75
  4. Step 4: Simplify right side
    210,420.72x = 33,372,249,990.50
  5. Step 5: Solve for x
    x = 33,372,249,990.50/210,420.72
  6. Step 6: Final answer
    x = 158,597.74

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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.