Home / 152,782.38-210,878.44-104,403.90

Finding the Fourth Proportional to 152,782.38, 210,878.44 and 104,403.90

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Solution

The fourth proportional to 152,782.38, 210,878.44 and 104,403.90 is: 144,103.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,782.38 : 210,878.44 = 104,403.90 : x
  2. Step 2: Convert to fraction form
    152,782.38/210,878.44 = 104,403.90/x
  3. Step 3: Cross multiply
    152,782.38x = 210,878.44 × 104,403.90
  4. Step 4: Simplify right side
    152,782.38x = 22,016,531,561.92
  5. Step 5: Solve for x
    x = 22,016,531,561.92/152,782.38
  6. Step 6: Final answer
    x = 144,103.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.