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Finding the Fourth Proportional to 104,860.80, 144,846.40 and 77,692.08

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Solution

The fourth proportional to 104,860.80, 144,846.40 and 77,692.08 is: 107,317.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,860.80 : 144,846.40 = 77,692.08 : x
  2. Step 2: Convert to fraction form
    104,860.80/144,846.40 = 77,692.08/x
  3. Step 3: Cross multiply
    104,860.80x = 144,846.40 × 77,692.08
  4. Step 4: Simplify right side
    104,860.80x = 11,253,418,096.51
  5. Step 5: Solve for x
    x = 11,253,418,096.51/104,860.80
  6. Step 6: Final answer
    x = 107,317.68

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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.