Home / 212,130.47-318,228.51-132,107.23

Finding the Fourth Proportional to 212,130.47, 318,228.51 and 132,107.23

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Solution

The fourth proportional to 212,130.47, 318,228.51 and 132,107.23 is: 198,181.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,130.47 : 318,228.51 = 132,107.23 : x
  2. Step 2: Convert to fraction form
    212,130.47/318,228.51 = 132,107.23/x
  3. Step 3: Cross multiply
    212,130.47x = 318,228.51 × 132,107.23
  4. Step 4: Simplify right side
    212,130.47x = 42,040,287,856.32
  5. Step 5: Solve for x
    x = 42,040,287,856.32/212,130.47
  6. Step 6: Final answer
    x = 198,181.28

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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.