Home / 122,255.02-168,712.54-71,303.09

Finding the Fourth Proportional to 122,255.02, 168,712.54 and 71,303.09

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Solution

The fourth proportional to 122,255.02, 168,712.54 and 71,303.09 is: 98,398.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,255.02 : 168,712.54 = 71,303.09 : x
  2. Step 2: Convert to fraction form
    122,255.02/168,712.54 = 71,303.09/x
  3. Step 3: Cross multiply
    122,255.02x = 168,712.54 × 71,303.09
  4. Step 4: Simplify right side
    122,255.02x = 12,029,724,401.93
  5. Step 5: Solve for x
    x = 12,029,724,401.93/122,255.02
  6. Step 6: Final answer
    x = 98,398.61

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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.