Home / 212,941.12-319,357.12-63,146.40

Finding the Fourth Proportional to 212,941.12, 319,357.12 and 63,146.40

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Solution

The fourth proportional to 212,941.12, 319,357.12 and 63,146.40 is: 94,703.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,941.12 : 319,357.12 = 63,146.40 : x
  2. Step 2: Convert to fraction form
    212,941.12/319,357.12 = 63,146.40/x
  3. Step 3: Cross multiply
    212,941.12x = 319,357.12 × 63,146.40
  4. Step 4: Simplify right side
    212,941.12x = 20,166,252,442.37
  5. Step 5: Solve for x
    x = 20,166,252,442.37/212,941.12
  6. Step 6: Final answer
    x = 94,703.42

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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.