Home / 104,340.54-143,968.95-66,115.02

Finding the Fourth Proportional to 104,340.54, 143,968.95 and 66,115.02

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Solution

The fourth proportional to 104,340.54, 143,968.95 and 66,115.02 is: 91,225.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,340.54 : 143,968.95 = 66,115.02 : x
  2. Step 2: Convert to fraction form
    104,340.54/143,968.95 = 66,115.02/x
  3. Step 3: Cross multiply
    104,340.54x = 143,968.95 × 66,115.02
  4. Step 4: Simplify right side
    104,340.54x = 9,518,510,008.63
  5. Step 5: Solve for x
    x = 9,518,510,008.63/104,340.54
  6. Step 6: Final answer
    x = 91,225.42

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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.