Home / 212,743.08-319,143.78-94,411.80

Finding the Fourth Proportional to 212,743.08, 319,143.78 and 94,411.80

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Solution

The fourth proportional to 212,743.08, 319,143.78 and 94,411.80 is: 141,630.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,743.08 : 319,143.78 = 94,411.80 : x
  2. Step 2: Convert to fraction form
    212,743.08/319,143.78 = 94,411.80/x
  3. Step 3: Cross multiply
    212,743.08x = 319,143.78 × 94,411.80
  4. Step 4: Simplify right side
    212,743.08x = 30,130,938,728.60
  5. Step 5: Solve for x
    x = 30,130,938,728.60/212,743.08
  6. Step 6: Final answer
    x = 141,630.64

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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.