Home / 212,921.58-319,289.65-61,085.16

Finding the Fourth Proportional to 212,921.58, 319,289.65 and 61,085.16

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Solution

The fourth proportional to 212,921.58, 319,289.65 and 61,085.16 is: 91,601.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,921.58 : 319,289.65 = 61,085.16 : x
  2. Step 2: Convert to fraction form
    212,921.58/319,289.65 = 61,085.16/x
  3. Step 3: Cross multiply
    212,921.58x = 319,289.65 × 61,085.16
  4. Step 4: Simplify right side
    212,921.58x = 19,503,859,356.59
  5. Step 5: Solve for x
    x = 19,503,859,356.59/212,921.58
  6. Step 6: Final answer
    x = 91,601.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.