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Finding the Fourth Proportional to 107,809.90, 161,714.85 and 48,712.30

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Solution

The fourth proportional to 107,809.90, 161,714.85 and 48,712.30 is: 73,068.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,809.90 : 161,714.85 = 48,712.30 : x
  2. Step 2: Convert to fraction form
    107,809.90/161,714.85 = 48,712.30/x
  3. Step 3: Cross multiply
    107,809.90x = 161,714.85 × 48,712.30
  4. Step 4: Simplify right side
    107,809.90x = 7,877,502,287.66
  5. Step 5: Solve for x
    x = 7,877,502,287.66/107,809.90
  6. Step 6: Final answer
    x = 73,068.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.