Home / 105,171.84-145,136.04-57,425.04

Finding the Fourth Proportional to 105,171.84, 145,136.04 and 57,425.04

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Solution

The fourth proportional to 105,171.84, 145,136.04 and 57,425.04 is: 79,245.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,171.84 : 145,136.04 = 57,425.04 : x
  2. Step 2: Convert to fraction form
    105,171.84/145,136.04 = 57,425.04/x
  3. Step 3: Cross multiply
    105,171.84x = 145,136.04 × 57,425.04
  4. Step 4: Simplify right side
    105,171.84x = 8,334,442,902.44
  5. Step 5: Solve for x
    x = 8,334,442,902.44/105,171.84
  6. Step 6: Final answer
    x = 79,245.96

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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.