Home / 105,437.40-145,504.67-57,692.76

Finding the Fourth Proportional to 105,437.40, 145,504.67 and 57,692.76

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Solution

The fourth proportional to 105,437.40, 145,504.67 and 57,692.76 is: 79,616.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,437.40 : 145,504.67 = 57,692.76 : x
  2. Step 2: Convert to fraction form
    105,437.40/145,504.67 = 57,692.76/x
  3. Step 3: Cross multiply
    105,437.40x = 145,504.67 × 57,692.76
  4. Step 4: Simplify right side
    105,437.40x = 8,394,565,716.73
  5. Step 5: Solve for x
    x = 8,394,565,716.73/105,437.40
  6. Step 6: Final answer
    x = 79,616.58

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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.