Home / 188,929.51-260,722.95-102,888.64

Finding the Fourth Proportional to 188,929.51, 260,722.95 and 102,888.64

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Solution

The fourth proportional to 188,929.51, 260,722.95 and 102,888.64 is: 141,986.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,929.51 : 260,722.95 = 102,888.64 : x
  2. Step 2: Convert to fraction form
    188,929.51/260,722.95 = 102,888.64/x
  3. Step 3: Cross multiply
    188,929.51x = 260,722.95 × 102,888.64
  4. Step 4: Simplify right side
    188,929.51x = 26,825,429,742.29
  5. Step 5: Solve for x
    x = 26,825,429,742.29/188,929.51
  6. Step 6: Final answer
    x = 141,986.45

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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.