Home / 109,199.21-163,701.34-42,623.82

Finding the Fourth Proportional to 109,199.21, 163,701.34 and 42,623.82

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Solution

The fourth proportional to 109,199.21, 163,701.34 and 42,623.82 is: 63,897.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,199.21 : 163,701.34 = 42,623.82 : x
  2. Step 2: Convert to fraction form
    109,199.21/163,701.34 = 42,623.82/x
  3. Step 3: Cross multiply
    109,199.21x = 163,701.34 × 42,623.82
  4. Step 4: Simplify right side
    109,199.21x = 6,977,576,343.36
  5. Step 5: Solve for x
    x = 6,977,576,343.36/109,199.21
  6. Step 6: Final answer
    x = 63,897.68

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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.