Home / 109,905.40-164,858.10-102,532.60

Finding the Fourth Proportional to 109,905.40, 164,858.10 and 102,532.60

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Solution

The fourth proportional to 109,905.40, 164,858.10 and 102,532.60 is: 153,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,905.40 : 164,858.10 = 102,532.60 : x
  2. Step 2: Convert to fraction form
    109,905.40/164,858.10 = 102,532.60/x
  3. Step 3: Cross multiply
    109,905.40x = 164,858.10 × 102,532.60
  4. Step 4: Simplify right side
    109,905.40x = 16,903,329,624.06
  5. Step 5: Solve for x
    x = 16,903,329,624.06/109,905.40
  6. Step 6: Final answer
    x = 153,798.90

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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.