Home / 103,018.64-154,586.40-55,633.20

Finding the Fourth Proportional to 103,018.64, 154,586.40 and 55,633.20

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Solution

The fourth proportional to 103,018.64, 154,586.40 and 55,633.20 is: 83,481.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,018.64 : 154,586.40 = 55,633.20 : x
  2. Step 2: Convert to fraction form
    103,018.64/154,586.40 = 55,633.20/x
  3. Step 3: Cross multiply
    103,018.64x = 154,586.40 × 55,633.20
  4. Step 4: Simplify right side
    103,018.64x = 8,600,136,108.48
  5. Step 5: Solve for x
    x = 8,600,136,108.48/103,018.64
  6. Step 6: Final answer
    x = 83,481.36

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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.