Home / 152,764.47-210,815.10-84,782.43

Finding the Fourth Proportional to 152,764.47, 210,815.10 and 84,782.43

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Solution

The fourth proportional to 152,764.47, 210,815.10 and 84,782.43 is: 116,999.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,764.47 : 210,815.10 = 84,782.43 : x
  2. Step 2: Convert to fraction form
    152,764.47/210,815.10 = 84,782.43/x
  3. Step 3: Cross multiply
    152,764.47x = 210,815.10 × 84,782.43
  4. Step 4: Simplify right side
    152,764.47x = 17,873,416,458.69
  5. Step 5: Solve for x
    x = 17,873,416,458.69/152,764.47
  6. Step 6: Final answer
    x = 116,999.83

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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.