Home / 212,017.24-318,094.89-99,708.64

Finding the Fourth Proportional to 212,017.24, 318,094.89 and 99,708.64

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Solution

The fourth proportional to 212,017.24, 318,094.89 and 99,708.64 is: 149,595.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,017.24 : 318,094.89 = 99,708.64 : x
  2. Step 2: Convert to fraction form
    212,017.24/318,094.89 = 99,708.64/x
  3. Step 3: Cross multiply
    212,017.24x = 318,094.89 × 99,708.64
  4. Step 4: Simplify right side
    212,017.24x = 31,716,808,872.85
  5. Step 5: Solve for x
    x = 31,716,808,872.85/212,017.24
  6. Step 6: Final answer
    x = 149,595.42

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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.