Home / 115,782.90-159,811.83-68,051.58

Finding the Fourth Proportional to 115,782.90, 159,811.83 and 68,051.58

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Solution

The fourth proportional to 115,782.90, 159,811.83 and 68,051.58 is: 93,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,782.90 : 159,811.83 = 68,051.58 : x
  2. Step 2: Convert to fraction form
    115,782.90/159,811.83 = 68,051.58/x
  3. Step 3: Cross multiply
    115,782.90x = 159,811.83 × 68,051.58
  4. Step 4: Simplify right side
    115,782.90x = 10,875,447,534.19
  5. Step 5: Solve for x
    x = 10,875,447,534.19/115,782.90
  6. Step 6: Final answer
    x = 93,929.65

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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.