Home / 212,033.80-318,050.88-99,631.57

Finding the Fourth Proportional to 212,033.80, 318,050.88 and 99,631.57

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Solution

The fourth proportional to 212,033.80, 318,050.88 and 99,631.57 is: 149,447.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,033.80 : 318,050.88 = 99,631.57 : x
  2. Step 2: Convert to fraction form
    212,033.80/318,050.88 = 99,631.57/x
  3. Step 3: Cross multiply
    212,033.80x = 318,050.88 × 99,631.57
  4. Step 4: Simplify right side
    212,033.80x = 31,687,908,514.28
  5. Step 5: Solve for x
    x = 31,687,908,514.28/212,033.80
  6. Step 6: Final answer
    x = 149,447.44

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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.