Home / 212,628.93-318,968.00-70,486.70

Finding the Fourth Proportional to 212,628.93, 318,968.00 and 70,486.70

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Solution

The fourth proportional to 212,628.93, 318,968.00 and 70,486.70 is: 105,738.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,628.93 : 318,968.00 = 70,486.70 : x
  2. Step 2: Convert to fraction form
    212,628.93/318,968.00 = 70,486.70/x
  3. Step 3: Cross multiply
    212,628.93x = 318,968.00 × 70,486.70
  4. Step 4: Simplify right side
    212,628.93x = 22,482,999,778.33
  5. Step 5: Solve for x
    x = 22,482,999,778.33/212,628.93
  6. Step 6: Final answer
    x = 105,738.20

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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.