Home / 120,297.19-180,363.77-61,018.55

Finding the Fourth Proportional to 120,297.19, 180,363.77 and 61,018.55

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Solution

The fourth proportional to 120,297.19, 180,363.77 and 61,018.55 is: 91,486.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,297.19 : 180,363.77 = 61,018.55 : x
  2. Step 2: Convert to fraction form
    120,297.19/180,363.77 = 61,018.55/x
  3. Step 3: Cross multiply
    120,297.19x = 180,363.77 × 61,018.55
  4. Step 4: Simplify right side
    120,297.19x = 11,005,535,412.84
  5. Step 5: Solve for x
    x = 11,005,535,412.84/120,297.19
  6. Step 6: Final answer
    x = 91,486.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.