Home / 102,955.60-142,080.24-62,671.06

Finding the Fourth Proportional to 102,955.60, 142,080.24 and 62,671.06

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Solution

The fourth proportional to 102,955.60, 142,080.24 and 62,671.06 is: 86,486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,955.60 : 142,080.24 = 62,671.06 : x
  2. Step 2: Convert to fraction form
    102,955.60/142,080.24 = 62,671.06/x
  3. Step 3: Cross multiply
    102,955.60x = 142,080.24 × 62,671.06
  4. Step 4: Simplify right side
    102,955.60x = 8,904,319,245.85
  5. Step 5: Solve for x
    x = 8,904,319,245.85/102,955.60
  6. Step 6: Final answer
    x = 86,486.98

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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.