Home / 155,309.16-214,194.87-131,228.28

Finding the Fourth Proportional to 155,309.16, 214,194.87 and 131,228.28

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Solution

The fourth proportional to 155,309.16, 214,194.87 and 131,228.28 is: 180,983.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,309.16 : 214,194.87 = 131,228.28 : x
  2. Step 2: Convert to fraction form
    155,309.16/214,194.87 = 131,228.28/x
  3. Step 3: Cross multiply
    155,309.16x = 214,194.87 × 131,228.28
  4. Step 4: Simplify right side
    155,309.16x = 28,108,424,374.92
  5. Step 5: Solve for x
    x = 28,108,424,374.92/155,309.16
  6. Step 6: Final answer
    x = 180,983.69

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1.5x scale

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.