Home / 102,780.02-141,859.32-62,485.26

Finding the Fourth Proportional to 102,780.02, 141,859.32 and 62,485.26

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Solution

The fourth proportional to 102,780.02, 141,859.32 and 62,485.26 is: 86,243.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,780.02 : 141,859.32 = 62,485.26 : x
  2. Step 2: Convert to fraction form
    102,780.02/141,859.32 = 62,485.26/x
  3. Step 3: Cross multiply
    102,780.02x = 141,859.32 × 62,485.26
  4. Step 4: Simplify right side
    102,780.02x = 8,864,116,493.62
  5. Step 5: Solve for x
    x = 8,864,116,493.62/102,780.02
  6. Step 6: Final answer
    x = 86,243.58

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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.