Home / 260,098.10-390,147.15-73,109.60

Finding the Fourth Proportional to 260,098.10, 390,147.15 and 73,109.60

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Solution

The fourth proportional to 260,098.10, 390,147.15 and 73,109.60 is: 109,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,098.10 : 390,147.15 = 73,109.60 : x
  2. Step 2: Convert to fraction form
    260,098.10/390,147.15 = 73,109.60/x
  3. Step 3: Cross multiply
    260,098.10x = 390,147.15 × 73,109.60
  4. Step 4: Simplify right side
    260,098.10x = 28,523,502,077.64
  5. Step 5: Solve for x
    x = 28,523,502,077.64/260,098.10
  6. Step 6: Final answer
    x = 109,664.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.