Home / 212,307.38-318,198.63-107,156.42

Finding the Fourth Proportional to 212,307.38, 318,198.63 and 107,156.42

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Solution

The fourth proportional to 212,307.38, 318,198.63 and 107,156.42 is: 160,602.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,307.38 : 318,198.63 = 107,156.42 : x
  2. Step 2: Convert to fraction form
    212,307.38/318,198.63 = 107,156.42/x
  3. Step 3: Cross multiply
    212,307.38x = 318,198.63 × 107,156.42
  4. Step 4: Simplify right side
    212,307.38x = 34,097,026,039.70
  5. Step 5: Solve for x
    x = 34,097,026,039.70/212,307.38
  6. Step 6: Final answer
    x = 160,602.17

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1.5x scale

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.