Home / 103,239.20-154,754.20-69,962.60

Finding the Fourth Proportional to 103,239.20, 154,754.20 and 69,962.60

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Solution

The fourth proportional to 103,239.20, 154,754.20 and 69,962.60 is: 104,873.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,239.20 : 154,754.20 = 69,962.60 : x
  2. Step 2: Convert to fraction form
    103,239.20/154,754.20 = 69,962.60/x
  3. Step 3: Cross multiply
    103,239.20x = 154,754.20 × 69,962.60
  4. Step 4: Simplify right side
    103,239.20x = 10,827,006,192.92
  5. Step 5: Solve for x
    x = 10,827,006,192.92/103,239.20
  6. Step 6: Final answer
    x = 104,873.02

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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.