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Finding the Fourth Proportional to 121,901.02, 182,851.53 and 51,731.13

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Solution

The fourth proportional to 121,901.02, 182,851.53 and 51,731.13 is: 77,596.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,901.02 : 182,851.53 = 51,731.13 : x
  2. Step 2: Convert to fraction form
    121,901.02/182,851.53 = 51,731.13/x
  3. Step 3: Cross multiply
    121,901.02x = 182,851.53 × 51,731.13
  4. Step 4: Simplify right side
    121,901.02x = 9,459,116,269.13
  5. Step 5: Solve for x
    x = 9,459,116,269.13/121,901.02
  6. Step 6: Final answer
    x = 77,596.70

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Why These Related Problems?

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