Home / 147,914.31-204,121.65-79,931.25

Finding the Fourth Proportional to 147,914.31, 204,121.65 and 79,931.25

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Solution

The fourth proportional to 147,914.31, 204,121.65 and 79,931.25 is: 110,305.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,914.31 : 204,121.65 = 79,931.25 : x
  2. Step 2: Convert to fraction form
    147,914.31/204,121.65 = 79,931.25/x
  3. Step 3: Cross multiply
    147,914.31x = 204,121.65 × 79,931.25
  4. Step 4: Simplify right side
    147,914.31x = 16,315,698,636.56
  5. Step 5: Solve for x
    x = 16,315,698,636.56/147,914.31
  6. Step 6: Final answer
    x = 110,305.07

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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.