Home / 103,315.16-142,577.03-57,996.43

Finding the Fourth Proportional to 103,315.16, 142,577.03 and 57,996.43

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Solution

The fourth proportional to 103,315.16, 142,577.03 and 57,996.43 is: 80,036.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,315.16 : 142,577.03 = 57,996.43 : x
  2. Step 2: Convert to fraction form
    103,315.16/142,577.03 = 57,996.43/x
  3. Step 3: Cross multiply
    103,315.16x = 142,577.03 × 57,996.43
  4. Step 4: Simplify right side
    103,315.16x = 8,268,958,528.55
  5. Step 5: Solve for x
    x = 8,268,958,528.55/103,315.16
  6. Step 6: Final answer
    x = 80,036.25

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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.