Home / 163,855.42-245,781.05-89,449.58

Finding the Fourth Proportional to 163,855.42, 245,781.05 and 89,449.58

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Solution

The fourth proportional to 163,855.42, 245,781.05 and 89,449.58 is: 134,173.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,855.42 : 245,781.05 = 89,449.58 : x
  2. Step 2: Convert to fraction form
    163,855.42/245,781.05 = 89,449.58/x
  3. Step 3: Cross multiply
    163,855.42x = 245,781.05 × 89,449.58
  4. Step 4: Simplify right side
    163,855.42x = 21,985,011,861.66
  5. Step 5: Solve for x
    x = 21,985,011,861.66/163,855.42
  6. Step 6: Final answer
    x = 134,173.24

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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.