Home / 142,019.08-213,015.66-130,882.12

Finding the Fourth Proportional to 142,019.08, 213,015.66 and 130,882.12

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Solution

The fourth proportional to 142,019.08, 213,015.66 and 130,882.12 is: 196,311.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,019.08 : 213,015.66 = 130,882.12 : x
  2. Step 2: Convert to fraction form
    142,019.08/213,015.66 = 130,882.12/x
  3. Step 3: Cross multiply
    142,019.08x = 213,015.66 × 130,882.12
  4. Step 4: Simplify right side
    142,019.08x = 27,879,941,174.00
  5. Step 5: Solve for x
    x = 27,879,941,174.00/142,019.08
  6. Step 6: Final answer
    x = 196,311.24

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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.