Home / 100,810.10-151,237.01-30,687.59

Finding the Fourth Proportional to 100,810.10, 151,237.01 and 30,687.59

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Solution

The fourth proportional to 100,810.10, 151,237.01 and 30,687.59 is: 46,038.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,810.10 : 151,237.01 = 30,687.59 : x
  2. Step 2: Convert to fraction form
    100,810.10/151,237.01 = 30,687.59/x
  3. Step 3: Cross multiply
    100,810.10x = 151,237.01 × 30,687.59
  4. Step 4: Simplify right side
    100,810.10x = 4,641,099,017.35
  5. Step 5: Solve for x
    x = 4,641,099,017.35/100,810.10
  6. Step 6: Final answer
    x = 46,038.04

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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.