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Finding the Fourth Proportional to 144,307.80, 199,015.82 and 90,597.82

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Solution

The fourth proportional to 144,307.80, 199,015.82 and 90,597.82 is: 124,944.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,307.80 : 199,015.82 = 90,597.82 : x
  2. Step 2: Convert to fraction form
    144,307.80/199,015.82 = 90,597.82/x
  3. Step 3: Cross multiply
    144,307.80x = 199,015.82 × 90,597.82
  4. Step 4: Simplify right side
    144,307.80x = 18,030,399,437.51
  5. Step 5: Solve for x
    x = 18,030,399,437.51/144,307.80
  6. Step 6: Final answer
    x = 124,944.04

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Why These Related Problems?

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