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Finding the Fourth Proportional to 121,720, 182,603.04 and 56,056

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Solution

The fourth proportional to 121,720, 182,603.04 and 56,056 is: 84,094.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,720 : 182,603.04 = 56,056 : x
  2. Step 2: Convert to fraction form
    121,720/182,603.04 = 56,056/x
  3. Step 3: Cross multiply
    121,720x = 182,603.04 × 56,056
  4. Step 4: Simplify right side
    121,720x = 10,235,996,010.24
  5. Step 5: Solve for x
    x = 10,235,996,010.24/121,720
  6. Step 6: Final answer
    x = 84,094.61

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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.