Home / 109,162.74-163,744.10-30,276.98

Finding the Fourth Proportional to 109,162.74, 163,744.10 and 30,276.98

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Solution

The fourth proportional to 109,162.74, 163,744.10 and 30,276.98 is: 45,415.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,162.74 : 163,744.10 = 30,276.98 : x
  2. Step 2: Convert to fraction form
    109,162.74/163,744.10 = 30,276.98/x
  3. Step 3: Cross multiply
    109,162.74x = 163,744.10 × 30,276.98
  4. Step 4: Simplify right side
    109,162.74x = 4,957,676,840.82
  5. Step 5: Solve for x
    x = 4,957,676,840.82/109,162.74
  6. Step 6: Final answer
    x = 45,415.47

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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.