Home / 118,675.38-163,950.03-77,936.16

Finding the Fourth Proportional to 118,675.38, 163,950.03 and 77,936.16

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Solution

The fourth proportional to 118,675.38, 163,950.03 and 77,936.16 is: 107,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,675.38 : 163,950.03 = 77,936.16 : x
  2. Step 2: Convert to fraction form
    118,675.38/163,950.03 = 77,936.16/x
  3. Step 3: Cross multiply
    118,675.38x = 163,950.03 × 77,936.16
  4. Step 4: Simplify right side
    118,675.38x = 12,777,635,770.08
  5. Step 5: Solve for x
    x = 12,777,635,770.08/118,675.38
  6. Step 6: Final answer
    x = 107,668.80

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1.5x scale

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.