Home / 112,692.62-155,517.84-61,705.46

Finding the Fourth Proportional to 112,692.62, 155,517.84 and 61,705.46

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Solution

The fourth proportional to 112,692.62, 155,517.84 and 61,705.46 is: 85,154.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,692.62 : 155,517.84 = 61,705.46 : x
  2. Step 2: Convert to fraction form
    112,692.62/155,517.84 = 61,705.46/x
  3. Step 3: Cross multiply
    112,692.62x = 155,517.84 × 61,705.46
  4. Step 4: Simplify right side
    112,692.62x = 9,596,299,855.41
  5. Step 5: Solve for x
    x = 9,596,299,855.41/112,692.62
  6. Step 6: Final answer
    x = 85,154.64

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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.