Home / 212,156.78-292,765.47-116,661.02

Finding the Fourth Proportional to 212,156.78, 292,765.47 and 116,661.02

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Solution

The fourth proportional to 212,156.78, 292,765.47 and 116,661.02 is: 160,986.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,156.78 : 292,765.47 = 116,661.02 : x
  2. Step 2: Convert to fraction form
    212,156.78/292,765.47 = 116,661.02/x
  3. Step 3: Cross multiply
    212,156.78x = 292,765.47 × 116,661.02
  4. Step 4: Simplify right side
    212,156.78x = 34,154,318,350.98
  5. Step 5: Solve for x
    x = 34,154,318,350.98/212,156.78
  6. Step 6: Final answer
    x = 160,986.22

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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.