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Finding the Fourth Proportional to 121,804.40, 182,447.40 and 101,068.40

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Solution

The fourth proportional to 121,804.40, 182,447.40 and 101,068.40 is: 151,387.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,804.40 : 182,447.40 = 101,068.40 : x
  2. Step 2: Convert to fraction form
    121,804.40/182,447.40 = 101,068.40/x
  3. Step 3: Cross multiply
    121,804.40x = 182,447.40 × 101,068.40
  4. Step 4: Simplify right side
    121,804.40x = 18,439,666,802.16
  5. Step 5: Solve for x
    x = 18,439,666,802.16/121,804.40
  6. Step 6: Final answer
    x = 151,387.53

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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.