Home / 210,100.22-315,153.06-69,858.84

Finding the Fourth Proportional to 210,100.22, 315,153.06 and 69,858.84

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Solution

The fourth proportional to 210,100.22, 315,153.06 and 69,858.84 is: 104,789.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,100.22 : 315,153.06 = 69,858.84 : x
  2. Step 2: Convert to fraction form
    210,100.22/315,153.06 = 69,858.84/x
  3. Step 3: Cross multiply
    210,100.22x = 315,153.06 × 69,858.84
  4. Step 4: Simplify right side
    210,100.22x = 22,016,228,506.86
  5. Step 5: Solve for x
    x = 22,016,228,506.86/210,100.22
  6. Step 6: Final answer
    x = 104,789.17

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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.