Home / 103,459.22-142,769.12-60,442.70

Finding the Fourth Proportional to 103,459.22, 142,769.12 and 60,442.70

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Solution

The fourth proportional to 103,459.22, 142,769.12 and 60,442.70 is: 83,408.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,459.22 : 142,769.12 = 60,442.70 : x
  2. Step 2: Convert to fraction form
    103,459.22/142,769.12 = 60,442.70/x
  3. Step 3: Cross multiply
    103,459.22x = 142,769.12 × 60,442.70
  4. Step 4: Simplify right side
    103,459.22x = 8,629,351,089.42
  5. Step 5: Solve for x
    x = 8,629,351,089.42/103,459.22
  6. Step 6: Final answer
    x = 83,408.24

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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.