Home / 178,962.06-268,637.61-72,419.36

Finding the Fourth Proportional to 178,962.06, 268,637.61 and 72,419.36

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Solution

The fourth proportional to 178,962.06, 268,637.61 and 72,419.36 is: 108,707.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,962.06 : 268,637.61 = 72,419.36 : x
  2. Step 2: Convert to fraction form
    178,962.06/268,637.61 = 72,419.36/x
  3. Step 3: Cross multiply
    178,962.06x = 268,637.61 × 72,419.36
  4. Step 4: Simplify right side
    178,962.06x = 19,454,562,861.02
  5. Step 5: Solve for x
    x = 19,454,562,861.02/178,962.06
  6. Step 6: Final answer
    x = 108,707.75

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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.