Home / 178,701.05-268,051.68-112,187.90

Finding the Fourth Proportional to 178,701.05, 268,051.68 and 112,187.90

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Solution

The fourth proportional to 178,701.05, 268,051.68 and 112,187.90 is: 168,281.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,701.05 : 268,051.68 = 112,187.90 : x
  2. Step 2: Convert to fraction form
    178,701.05/268,051.68 = 112,187.90/x
  3. Step 3: Cross multiply
    178,701.05x = 268,051.68 × 112,187.90
  4. Step 4: Simplify right side
    178,701.05x = 30,072,155,740.80
  5. Step 5: Solve for x
    x = 30,072,155,740.80/178,701.05
  6. Step 6: Final answer
    x = 168,281.92

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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.