Home / 105,615.42-145,794.93-63,165.75

Finding the Fourth Proportional to 105,615.42, 145,794.93 and 63,165.75

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Solution

The fourth proportional to 105,615.42, 145,794.93 and 63,165.75 is: 87,196.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,615.42 : 145,794.93 = 63,165.75 : x
  2. Step 2: Convert to fraction form
    105,615.42/145,794.93 = 63,165.75/x
  3. Step 3: Cross multiply
    105,615.42x = 145,794.93 × 63,165.75
  4. Step 4: Simplify right side
    105,615.42x = 9,209,246,099.65
  5. Step 5: Solve for x
    x = 9,209,246,099.65/105,615.42
  6. Step 6: Final answer
    x = 87,196.04

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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.