Home / 210,114.24-315,174.08-69,872.84

Finding the Fourth Proportional to 210,114.24, 315,174.08 and 69,872.84

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Solution

The fourth proportional to 210,114.24, 315,174.08 and 69,872.84 is: 104,810.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,114.24 : 315,174.08 = 69,872.84 : x
  2. Step 2: Convert to fraction form
    210,114.24/315,174.08 = 69,872.84/x
  3. Step 3: Cross multiply
    210,114.24x = 315,174.08 × 69,872.84
  4. Step 4: Simplify right side
    210,114.24x = 22,022,108,063.99
  5. Step 5: Solve for x
    x = 22,022,108,063.99/210,114.24
  6. Step 6: Final answer
    x = 104,810.16

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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.