Home / 103,699.02-143,065.54-60,664.80

Finding the Fourth Proportional to 103,699.02, 143,065.54 and 60,664.80

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Solution

The fourth proportional to 103,699.02, 143,065.54 and 60,664.80 is: 83,694.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,699.02 : 143,065.54 = 60,664.80 : x
  2. Step 2: Convert to fraction form
    103,699.02/143,065.54 = 60,664.80/x
  3. Step 3: Cross multiply
    103,699.02x = 143,065.54 × 60,664.80
  4. Step 4: Simplify right side
    103,699.02x = 8,679,042,370.99
  5. Step 5: Solve for x
    x = 8,679,042,370.99/103,699.02
  6. Step 6: Final answer
    x = 83,694.55

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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.