Home / 212,076.84-318,106.95-71,835.46

Finding the Fourth Proportional to 212,076.84, 318,106.95 and 71,835.46

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Solution

The fourth proportional to 212,076.84, 318,106.95 and 71,835.46 is: 107,750.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,076.84 : 318,106.95 = 71,835.46 : x
  2. Step 2: Convert to fraction form
    212,076.84/318,106.95 = 71,835.46/x
  3. Step 3: Cross multiply
    212,076.84x = 318,106.95 × 71,835.46
  4. Step 4: Simplify right side
    212,076.84x = 22,851,359,082.45
  5. Step 5: Solve for x
    x = 22,851,359,082.45/212,076.84
  6. Step 6: Final answer
    x = 107,750.38

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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.