Home / 140,189.60-210,091.44-61,369.76

Finding the Fourth Proportional to 140,189.60, 210,091.44 and 61,369.76

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Solution

The fourth proportional to 140,189.60, 210,091.44 and 61,369.76 is: 91,970.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,189.60 : 210,091.44 = 61,369.76 : x
  2. Step 2: Convert to fraction form
    140,189.60/210,091.44 = 61,369.76/x
  3. Step 3: Cross multiply
    140,189.60x = 210,091.44 × 61,369.76
  4. Step 4: Simplify right side
    140,189.60x = 12,893,261,250.85
  5. Step 5: Solve for x
    x = 12,893,261,250.85/140,189.60
  6. Step 6: Final answer
    x = 91,970.17

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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.