Home / 105,412.46-145,466.62-64,592.47

Finding the Fourth Proportional to 105,412.46, 145,466.62 and 64,592.47

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Solution

The fourth proportional to 105,412.46, 145,466.62 and 64,592.47 is: 89,136.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,412.46 : 145,466.62 = 64,592.47 : x
  2. Step 2: Convert to fraction form
    105,412.46/145,466.62 = 64,592.47/x
  3. Step 3: Cross multiply
    105,412.46x = 145,466.62 × 64,592.47
  4. Step 4: Simplify right side
    105,412.46x = 9,396,048,308.70
  5. Step 5: Solve for x
    x = 9,396,048,308.70/105,412.46
  6. Step 6: Final answer
    x = 89,136.04

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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.