Home / 133,165.37-183,554.75-90,131.28

Finding the Fourth Proportional to 133,165.37, 183,554.75 and 90,131.28

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Solution

The fourth proportional to 133,165.37, 183,554.75 and 90,131.28 is: 124,236.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,165.37 : 183,554.75 = 90,131.28 : x
  2. Step 2: Convert to fraction form
    133,165.37/183,554.75 = 90,131.28/x
  3. Step 3: Cross multiply
    133,165.37x = 183,554.75 × 90,131.28
  4. Step 4: Simplify right side
    133,165.37x = 16,544,024,116.92
  5. Step 5: Solve for x
    x = 16,544,024,116.92/133,165.37
  6. Step 6: Final answer
    x = 124,236.69

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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.