Home / 212,093.18-318,123.23-123,290.04

Finding the Fourth Proportional to 212,093.18, 318,123.23 and 123,290.04

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Solution

The fourth proportional to 212,093.18, 318,123.23 and 123,290.04 is: 184,925.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,093.18 : 318,123.23 = 123,290.04 : x
  2. Step 2: Convert to fraction form
    212,093.18/318,123.23 = 123,290.04/x
  3. Step 3: Cross multiply
    212,093.18x = 318,123.23 × 123,290.04
  4. Step 4: Simplify right side
    212,093.18x = 39,221,425,135.18
  5. Step 5: Solve for x
    x = 39,221,425,135.18/212,093.18
  6. Step 6: Final answer
    x = 184,925.45

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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.