Home / 212,782.72-293,640.08-117,291.01

Finding the Fourth Proportional to 212,782.72, 293,640.08 and 117,291.01

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Solution

The fourth proportional to 212,782.72, 293,640.08 and 117,291.01 is: 161,861.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,782.72 : 293,640.08 = 117,291.01 : x
  2. Step 2: Convert to fraction form
    212,782.72/293,640.08 = 117,291.01/x
  3. Step 3: Cross multiply
    212,782.72x = 293,640.08 × 117,291.01
  4. Step 4: Simplify right side
    212,782.72x = 34,441,340,018.69
  5. Step 5: Solve for x
    x = 34,441,340,018.69/212,782.72
  6. Step 6: Final answer
    x = 161,861.55

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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.