Home / 143,085.06-214,659.99-76,490.10

Finding the Fourth Proportional to 143,085.06, 214,659.99 and 76,490.10

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Solution

The fourth proportional to 143,085.06, 214,659.99 and 76,490.10 is: 114,752.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,085.06 : 214,659.99 = 76,490.10 : x
  2. Step 2: Convert to fraction form
    143,085.06/214,659.99 = 76,490.10/x
  3. Step 3: Cross multiply
    143,085.06x = 214,659.99 × 76,490.10
  4. Step 4: Simplify right side
    143,085.06x = 16,419,364,101.10
  5. Step 5: Solve for x
    x = 16,419,364,101.10/143,085.06
  6. Step 6: Final answer
    x = 114,752.47

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1.5x scale

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.