Home / 210,122.19-315,090.36-60,327.72

Finding the Fourth Proportional to 210,122.19, 315,090.36 and 60,327.72

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Solution

The fourth proportional to 210,122.19, 315,090.36 and 60,327.72 is: 90,464.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,122.19 : 315,090.36 = 60,327.72 : x
  2. Step 2: Convert to fraction form
    210,122.19/315,090.36 = 60,327.72/x
  3. Step 3: Cross multiply
    210,122.19x = 315,090.36 × 60,327.72
  4. Step 4: Simplify right side
    210,122.19x = 19,008,683,012.78
  5. Step 5: Solve for x
    x = 19,008,683,012.78/210,122.19
  6. Step 6: Final answer
    x = 90,464.90

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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.