Home / 210,107.12-315,163.46-66,008.23

Finding the Fourth Proportional to 210,107.12, 315,163.46 and 66,008.23

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Solution

The fourth proportional to 210,107.12, 315,163.46 and 66,008.23 is: 99,013.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,107.12 : 315,163.46 = 66,008.23 : x
  2. Step 2: Convert to fraction form
    210,107.12/315,163.46 = 66,008.23/x
  3. Step 3: Cross multiply
    210,107.12x = 315,163.46 × 66,008.23
  4. Step 4: Simplify right side
    210,107.12x = 20,803,382,933.89
  5. Step 5: Solve for x
    x = 20,803,382,933.89/210,107.12
  6. Step 6: Final answer
    x = 99,013.22

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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.