Home / 144,019.94-198,692.08-90,211.28

Finding the Fourth Proportional to 144,019.94, 198,692.08 and 90,211.28

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Solution

The fourth proportional to 144,019.94, 198,692.08 and 90,211.28 is: 124,456.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,019.94 : 198,692.08 = 90,211.28 : x
  2. Step 2: Convert to fraction form
    144,019.94/198,692.08 = 90,211.28/x
  3. Step 3: Cross multiply
    144,019.94x = 198,692.08 × 90,211.28
  4. Step 4: Simplify right side
    144,019.94x = 17,924,265,643.67
  5. Step 5: Solve for x
    x = 17,924,265,643.67/144,019.94
  6. Step 6: Final answer
    x = 124,456.84

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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.