Home / 140,558.36-210,865.76-51,812.32

Finding the Fourth Proportional to 140,558.36, 210,865.76 and 51,812.32

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Solution

The fourth proportional to 140,558.36, 210,865.76 and 51,812.32 is: 77,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,558.36 : 210,865.76 = 51,812.32 : x
  2. Step 2: Convert to fraction form
    140,558.36/210,865.76 = 51,812.32/x
  3. Step 3: Cross multiply
    140,558.36x = 210,865.76 × 51,812.32
  4. Step 4: Simplify right side
    140,558.36x = 10,925,444,234.16
  5. Step 5: Solve for x
    x = 10,925,444,234.16/140,558.36
  6. Step 6: Final answer
    x = 77,728.88

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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.