Home / 252,687.12-348,699.24-139,509.60

Finding the Fourth Proportional to 252,687.12, 348,699.24 and 139,509.60

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Solution

The fourth proportional to 252,687.12, 348,699.24 and 139,509.60 is: 192,518.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,687.12 : 348,699.24 = 139,509.60 : x
  2. Step 2: Convert to fraction form
    252,687.12/348,699.24 = 139,509.60/x
  3. Step 3: Cross multiply
    252,687.12x = 348,699.24 × 139,509.60
  4. Step 4: Simplify right side
    252,687.12x = 48,646,891,492.70
  5. Step 5: Solve for x
    x = 48,646,891,492.70/252,687.12
  6. Step 6: Final answer
    x = 192,518.29

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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.