Home / 109,288.98-163,933.77-30,403.28

Finding the Fourth Proportional to 109,288.98, 163,933.77 and 30,403.28

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Solution

The fourth proportional to 109,288.98, 163,933.77 and 30,403.28 is: 45,605.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,288.98 : 163,933.77 = 30,403.28 : x
  2. Step 2: Convert to fraction form
    109,288.98/163,933.77 = 30,403.28/x
  3. Step 3: Cross multiply
    109,288.98x = 163,933.77 × 30,403.28
  4. Step 4: Simplify right side
    109,288.98x = 4,984,124,834.61
  5. Step 5: Solve for x
    x = 4,984,124,834.61/109,288.98
  6. Step 6: Final answer
    x = 45,605.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.