Home / 155,557.36-214,656.42-87,552.64

Finding the Fourth Proportional to 155,557.36, 214,656.42 and 87,552.64

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Solution

The fourth proportional to 155,557.36, 214,656.42 and 87,552.64 is: 120,815.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,557.36 : 214,656.42 = 87,552.64 : x
  2. Step 2: Convert to fraction form
    155,557.36/214,656.42 = 87,552.64/x
  3. Step 3: Cross multiply
    155,557.36x = 214,656.42 × 87,552.64
  4. Step 4: Simplify right side
    155,557.36x = 18,793,736,263.95
  5. Step 5: Solve for x
    x = 18,793,736,263.95/155,557.36
  6. Step 6: Final answer
    x = 120,815.47

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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.