Home / 140,561.36-210,870.26-51,815.32

Finding the Fourth Proportional to 140,561.36, 210,870.26 and 51,815.32

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Solution

The fourth proportional to 140,561.36, 210,870.26 and 51,815.32 is: 77,733.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,561.36 : 210,870.26 = 51,815.32 : x
  2. Step 2: Convert to fraction form
    140,561.36/210,870.26 = 51,815.32/x
  3. Step 3: Cross multiply
    140,561.36x = 210,870.26 × 51,815.32
  4. Step 4: Simplify right side
    140,561.36x = 10,926,310,000.38
  5. Step 5: Solve for x
    x = 10,926,310,000.38/140,561.36
  6. Step 6: Final answer
    x = 77,733.38

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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.