Home / 230,741.20-346,079.40-72,985.60

Finding the Fourth Proportional to 230,741.20, 346,079.40 and 72,985.60

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Solution

The fourth proportional to 230,741.20, 346,079.40 and 72,985.60 is: 109,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,741.20 : 346,079.40 = 72,985.60 : x
  2. Step 2: Convert to fraction form
    230,741.20/346,079.40 = 72,985.60/x
  3. Step 3: Cross multiply
    230,741.20x = 346,079.40 × 72,985.60
  4. Step 4: Simplify right side
    230,741.20x = 25,258,812,656.64
  5. Step 5: Solve for x
    x = 25,258,812,656.64/230,741.20
  6. Step 6: Final answer
    x = 109,468.15

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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.