Home / 155,664.99-214,822.67-91,140.57

Finding the Fourth Proportional to 155,664.99, 214,822.67 and 91,140.57

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Solution

The fourth proportional to 155,664.99, 214,822.67 and 91,140.57 is: 125,776.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,664.99 : 214,822.67 = 91,140.57 : x
  2. Step 2: Convert to fraction form
    155,664.99/214,822.67 = 91,140.57/x
  3. Step 3: Cross multiply
    155,664.99x = 214,822.67 × 91,140.57
  4. Step 4: Simplify right side
    155,664.99x = 19,579,060,137.02
  5. Step 5: Solve for x
    x = 19,579,060,137.02/155,664.99
  6. Step 6: Final answer
    x = 125,776.90

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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.