Home / 155,457.30-214,569.09-101,872.02

Finding the Fourth Proportional to 155,457.30, 214,569.09 and 101,872.02

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Solution

The fourth proportional to 155,457.30, 214,569.09 and 101,872.02 is: 140,608.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,457.30 : 214,569.09 = 101,872.02 : x
  2. Step 2: Convert to fraction form
    155,457.30/214,569.09 = 101,872.02/x
  3. Step 3: Cross multiply
    155,457.30x = 214,569.09 × 101,872.02
  4. Step 4: Simplify right side
    155,457.30x = 21,858,586,627.86
  5. Step 5: Solve for x
    x = 21,858,586,627.86/155,457.30
  6. Step 6: Final answer
    x = 140,608.30

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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.