Home / 155,410.56-214,536-119,587.20

Finding the Fourth Proportional to 155,410.56, 214,536 and 119,587.20

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Solution

The fourth proportional to 155,410.56, 214,536 and 119,587.20 is: 165,083.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,410.56 : 214,536 = 119,587.20 : x
  2. Step 2: Convert to fraction form
    155,410.56/214,536 = 119,587.20/x
  3. Step 3: Cross multiply
    155,410.56x = 214,536 × 119,587.20
  4. Step 4: Simplify right side
    155,410.56x = 25,655,759,539.20
  5. Step 5: Solve for x
    x = 25,655,759,539.20/155,410.56
  6. Step 6: Final answer
    x = 165,083.76

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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.