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Finding the Fourth Proportional to 123,303.30, 170,158.54 and 66,714.68

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Solution

The fourth proportional to 123,303.30, 170,158.54 and 66,714.68 is: 92,066.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,303.30 : 170,158.54 = 66,714.68 : x
  2. Step 2: Convert to fraction form
    123,303.30/170,158.54 = 66,714.68/x
  3. Step 3: Cross multiply
    123,303.30x = 170,158.54 × 66,714.68
  4. Step 4: Simplify right side
    123,303.30x = 11,352,072,545.37
  5. Step 5: Solve for x
    x = 11,352,072,545.37/123,303.30
  6. Step 6: Final answer
    x = 92,066.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.