Home / 103,442.94-142,743.87-58,118.58

Finding the Fourth Proportional to 103,442.94, 142,743.87 and 58,118.58

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Solution

The fourth proportional to 103,442.94, 142,743.87 and 58,118.58 is: 80,199.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,442.94 : 142,743.87 = 58,118.58 : x
  2. Step 2: Convert to fraction form
    103,442.94/142,743.87 = 58,118.58/x
  3. Step 3: Cross multiply
    103,442.94x = 142,743.87 × 58,118.58
  4. Step 4: Simplify right side
    103,442.94x = 8,296,071,028.10
  5. Step 5: Solve for x
    x = 8,296,071,028.10/103,442.94
  6. Step 6: Final answer
    x = 80,199.49

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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.