Home / 120,586.02-180,852.93-76,153.38

Finding the Fourth Proportional to 120,586.02, 180,852.93 and 76,153.38

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Solution

The fourth proportional to 120,586.02, 180,852.93 and 76,153.38 is: 114,213.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,586.02 : 180,852.93 = 76,153.38 : x
  2. Step 2: Convert to fraction form
    120,586.02/180,852.93 = 76,153.38/x
  3. Step 3: Cross multiply
    120,586.02x = 180,852.93 × 76,153.38
  4. Step 4: Simplify right side
    120,586.02x = 13,772,561,902.40
  5. Step 5: Solve for x
    x = 13,772,561,902.40/120,586.02
  6. Step 6: Final answer
    x = 114,213.59

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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.