Home / 105,359.36-145,400.49-59,434.43

Finding the Fourth Proportional to 105,359.36, 145,400.49 and 59,434.43

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Solution

The fourth proportional to 105,359.36, 145,400.49 and 59,434.43 is: 82,022.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,359.36 : 145,400.49 = 59,434.43 : x
  2. Step 2: Convert to fraction form
    105,359.36/145,400.49 = 59,434.43/x
  3. Step 3: Cross multiply
    105,359.36x = 145,400.49 × 59,434.43
  4. Step 4: Simplify right side
    105,359.36x = 8,641,794,517.87
  5. Step 5: Solve for x
    x = 8,641,794,517.87/105,359.36
  6. Step 6: Final answer
    x = 82,022.09

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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.