Home / 212,030.44-318,045.66-78,907.24

Finding the Fourth Proportional to 212,030.44, 318,045.66 and 78,907.24

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Solution

The fourth proportional to 212,030.44, 318,045.66 and 78,907.24 is: 118,360.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,030.44 : 318,045.66 = 78,907.24 : x
  2. Step 2: Convert to fraction form
    212,030.44/318,045.66 = 78,907.24/x
  3. Step 3: Cross multiply
    212,030.44x = 318,045.66 × 78,907.24
  4. Step 4: Simplify right side
    212,030.44x = 25,096,105,224.58
  5. Step 5: Solve for x
    x = 25,096,105,224.58/212,030.44
  6. Step 6: Final answer
    x = 118,360.86

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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.