Home / 102,954.60-142,078.86-62,670.06

Finding the Fourth Proportional to 102,954.60, 142,078.86 and 62,670.06

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Solution

The fourth proportional to 102,954.60, 142,078.86 and 62,670.06 is: 86,485.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,954.60 : 142,078.86 = 62,670.06 : x
  2. Step 2: Convert to fraction form
    102,954.60/142,078.86 = 62,670.06/x
  3. Step 3: Cross multiply
    102,954.60x = 142,078.86 × 62,670.06
  4. Step 4: Simplify right side
    102,954.60x = 8,904,090,680.93
  5. Step 5: Solve for x
    x = 8,904,090,680.93/102,954.60
  6. Step 6: Final answer
    x = 86,485.60

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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.