Home / 109,412.58-163,943.88-98,914.98

Finding the Fourth Proportional to 109,412.58, 163,943.88 and 98,914.98

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Solution

The fourth proportional to 109,412.58, 163,943.88 and 98,914.98 is: 148,214.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,412.58 : 163,943.88 = 98,914.98 : x
  2. Step 2: Convert to fraction form
    109,412.58/163,943.88 = 98,914.98/x
  3. Step 3: Cross multiply
    109,412.58x = 163,943.88 × 98,914.98
  4. Step 4: Simplify right side
    109,412.58x = 16,216,505,611.32
  5. Step 5: Solve for x
    x = 16,216,505,611.32/109,412.58
  6. Step 6: Final answer
    x = 148,214.27

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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.