Home / 199,965.39-275,914.15-118,306.45

Finding the Fourth Proportional to 199,965.39, 275,914.15 and 118,306.45

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Solution

The fourth proportional to 199,965.39, 275,914.15 and 118,306.45 is: 163,240.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,965.39 : 275,914.15 = 118,306.45 : x
  2. Step 2: Convert to fraction form
    199,965.39/275,914.15 = 118,306.45/x
  3. Step 3: Cross multiply
    199,965.39x = 275,914.15 × 118,306.45
  4. Step 4: Simplify right side
    199,965.39x = 32,642,423,591.27
  5. Step 5: Solve for x
    x = 32,642,423,591.27/199,965.39
  6. Step 6: Final answer
    x = 163,240.37

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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.