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Finding the Fourth Proportional to 103,127.98, 154,741.74 and 56,379.64

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Solution

The fourth proportional to 103,127.98, 154,741.74 and 56,379.64 is: 84,596.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,127.98 : 154,741.74 = 56,379.64 : x
  2. Step 2: Convert to fraction form
    103,127.98/154,741.74 = 56,379.64/x
  3. Step 3: Cross multiply
    103,127.98x = 154,741.74 × 56,379.64
  4. Step 4: Simplify right side
    103,127.98x = 8,724,283,594.17
  5. Step 5: Solve for x
    x = 8,724,283,594.17/103,127.98
  6. Step 6: Final answer
    x = 84,596.67

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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.