Home / 147,678.58-203,735.76-109,531.98

Finding the Fourth Proportional to 147,678.58, 203,735.76 and 109,531.98

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Solution

The fourth proportional to 147,678.58, 203,735.76 and 109,531.98 is: 151,109.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,678.58 : 203,735.76 = 109,531.98 : x
  2. Step 2: Convert to fraction form
    147,678.58/203,735.76 = 109,531.98/x
  3. Step 3: Cross multiply
    147,678.58x = 203,735.76 × 109,531.98
  4. Step 4: Simplify right side
    147,678.58x = 22,315,581,189.60
  5. Step 5: Solve for x
    x = 22,315,581,189.60/147,678.58
  6. Step 6: Final answer
    x = 151,109.13

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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.