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Finding the Fourth Proportional to 140,603.58, 210,954.58 and 40,769.76

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Solution

The fourth proportional to 140,603.58, 210,954.58 and 40,769.76 is: 61,168.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,603.58 : 210,954.58 = 40,769.76 : x
  2. Step 2: Convert to fraction form
    140,603.58/210,954.58 = 40,769.76/x
  3. Step 3: Cross multiply
    140,603.58x = 210,954.58 × 40,769.76
  4. Step 4: Simplify right side
    140,603.58x = 8,600,567,495.58
  5. Step 5: Solve for x
    x = 8,600,567,495.58/140,603.58
  6. Step 6: Final answer
    x = 61,168.91

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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.