Home / 105,736.91-145,918.80-57,989.84

Finding the Fourth Proportional to 105,736.91, 145,918.80 and 57,989.84

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Solution

The fourth proportional to 105,736.91, 145,918.80 and 57,989.84 is: 80,027.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,736.91 : 145,918.80 = 57,989.84 : x
  2. Step 2: Convert to fraction form
    105,736.91/145,918.80 = 57,989.84/x
  3. Step 3: Cross multiply
    105,736.91x = 145,918.80 × 57,989.84
  4. Step 4: Simplify right side
    105,736.91x = 8,461,807,135.40
  5. Step 5: Solve for x
    x = 8,461,807,135.40/105,736.91
  6. Step 6: Final answer
    x = 80,027.00

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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.