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Finding the Fourth Proportional to 101,848.50, 140,550.93 and 57,136.50

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Solution

The fourth proportional to 101,848.50, 140,550.93 and 57,136.50 is: 78,848.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,848.50 : 140,550.93 = 57,136.50 : x
  2. Step 2: Convert to fraction form
    101,848.50/140,550.93 = 57,136.50/x
  3. Step 3: Cross multiply
    101,848.50x = 140,550.93 × 57,136.50
  4. Step 4: Simplify right side
    101,848.50x = 8,030,588,211.95
  5. Step 5: Solve for x
    x = 8,030,588,211.95/101,848.50
  6. Step 6: Final answer
    x = 78,848.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.