Home / 178,735.12-268,102.53-45,615.40

Finding the Fourth Proportional to 178,735.12, 268,102.53 and 45,615.40

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Solution

The fourth proportional to 178,735.12, 268,102.53 and 45,615.40 is: 68,423.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,735.12 : 268,102.53 = 45,615.40 : x
  2. Step 2: Convert to fraction form
    178,735.12/268,102.53 = 45,615.40/x
  3. Step 3: Cross multiply
    178,735.12x = 268,102.53 × 45,615.40
  4. Step 4: Simplify right side
    178,735.12x = 12,229,604,146.96
  5. Step 5: Solve for x
    x = 12,229,604,146.96/178,735.12
  6. Step 6: Final answer
    x = 68,423.06

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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.