Home / 103,408.86-142,761.02-62,580.60

Finding the Fourth Proportional to 103,408.86, 142,761.02 and 62,580.60

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Solution

The fourth proportional to 103,408.86, 142,761.02 and 62,580.60 is: 86,395.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,408.86 : 142,761.02 = 62,580.60 : x
  2. Step 2: Convert to fraction form
    103,408.86/142,761.02 = 62,580.60/x
  3. Step 3: Cross multiply
    103,408.86x = 142,761.02 × 62,580.60
  4. Step 4: Simplify right side
    103,408.86x = 8,934,069,975.31
  5. Step 5: Solve for x
    x = 8,934,069,975.31/103,408.86
  6. Step 6: Final answer
    x = 86,395.59

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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.