Home / 260,105.02-390,157.52-73,116.52

Finding the Fourth Proportional to 260,105.02, 390,157.52 and 73,116.52

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Solution

The fourth proportional to 260,105.02, 390,157.52 and 73,116.52 is: 109,674.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,105.02 : 390,157.52 = 73,116.52 : x
  2. Step 2: Convert to fraction form
    260,105.02/390,157.52 = 73,116.52/x
  3. Step 3: Cross multiply
    260,105.02x = 390,157.52 × 73,116.52
  4. Step 4: Simplify right side
    260,105.02x = 28,526,960,114.23
  5. Step 5: Solve for x
    x = 28,526,960,114.23/260,105.02
  6. Step 6: Final answer
    x = 109,674.78

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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.