Home / 140,186.73-210,280.07-77,406.03

Finding the Fourth Proportional to 140,186.73, 210,280.07 and 77,406.03

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Solution

The fourth proportional to 140,186.73, 210,280.07 and 77,406.03 is: 116,109.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,186.73 : 210,280.07 = 77,406.03 : x
  2. Step 2: Convert to fraction form
    140,186.73/210,280.07 = 77,406.03/x
  3. Step 3: Cross multiply
    140,186.73x = 210,280.07 × 77,406.03
  4. Step 4: Simplify right side
    140,186.73x = 16,276,945,019.79
  5. Step 5: Solve for x
    x = 16,276,945,019.79/140,186.73
  6. Step 6: Final answer
    x = 116,109.03

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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.