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Finding the Fourth Proportional to 117,006.54, 161,455.10 and 66,016.32

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Solution

The fourth proportional to 117,006.54, 161,455.10 and 66,016.32 is: 91,094.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,006.54 : 161,455.10 = 66,016.32 : x
  2. Step 2: Convert to fraction form
    117,006.54/161,455.10 = 66,016.32/x
  3. Step 3: Cross multiply
    117,006.54x = 161,455.10 × 66,016.32
  4. Step 4: Simplify right side
    117,006.54x = 10,658,671,547.23
  5. Step 5: Solve for x
    x = 10,658,671,547.23/117,006.54
  6. Step 6: Final answer
    x = 91,094.66

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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.