Home / 147,136.80-203,071.68-83,461.44

Finding the Fourth Proportional to 147,136.80, 203,071.68 and 83,461.44

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Solution

The fourth proportional to 147,136.80, 203,071.68 and 83,461.44 is: 115,189.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,136.80 : 203,071.68 = 83,461.44 : x
  2. Step 2: Convert to fraction form
    147,136.80/203,071.68 = 83,461.44/x
  3. Step 3: Cross multiply
    147,136.80x = 203,071.68 × 83,461.44
  4. Step 4: Simplify right side
    147,136.80x = 16,948,654,836.02
  5. Step 5: Solve for x
    x = 16,948,654,836.02/147,136.80
  6. Step 6: Final answer
    x = 115,189.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.