Home / 103,486.53-142,807.37-58,166.49

Finding the Fourth Proportional to 103,486.53, 142,807.37 and 58,166.49

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Solution

The fourth proportional to 103,486.53, 142,807.37 and 58,166.49 is: 80,267.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,486.53 : 142,807.37 = 58,166.49 : x
  2. Step 2: Convert to fraction form
    103,486.53/142,807.37 = 58,166.49/x
  3. Step 3: Cross multiply
    103,486.53x = 142,807.37 × 58,166.49
  4. Step 4: Simplify right side
    103,486.53x = 8,306,603,168.20
  5. Step 5: Solve for x
    x = 8,306,603,168.20/103,486.53
  6. Step 6: Final answer
    x = 80,267.48

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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.