Home / 105,714.40-145,885.80-57,968.52

Finding the Fourth Proportional to 105,714.40, 145,885.80 and 57,968.52

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Solution

The fourth proportional to 105,714.40, 145,885.80 and 57,968.52 is: 79,996.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,714.40 : 145,885.80 = 57,968.52 : x
  2. Step 2: Convert to fraction form
    105,714.40/145,885.80 = 57,968.52/x
  3. Step 3: Cross multiply
    105,714.40x = 145,885.80 × 57,968.52
  4. Step 4: Simplify right side
    105,714.40x = 8,456,783,915.02
  5. Step 5: Solve for x
    x = 8,456,783,915.02/105,714.40
  6. Step 6: Final answer
    x = 79,996.52

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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.