Home / 212,025.60-318,038.40-107,049.60

Finding the Fourth Proportional to 212,025.60, 318,038.40 and 107,049.60

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Solution

The fourth proportional to 212,025.60, 318,038.40 and 107,049.60 is: 160,574.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,025.60 : 318,038.40 = 107,049.60 : x
  2. Step 2: Convert to fraction form
    212,025.60/318,038.40 = 107,049.60/x
  3. Step 3: Cross multiply
    212,025.60x = 318,038.40 × 107,049.60
  4. Step 4: Simplify right side
    212,025.60x = 34,045,883,504.64
  5. Step 5: Solve for x
    x = 34,045,883,504.64/212,025.60
  6. Step 6: Final answer
    x = 160,574.40

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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.