Home / 178,720.34-268,142.02-112,082.45

Finding the Fourth Proportional to 178,720.34, 268,142.02 and 112,082.45

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Solution

The fourth proportional to 178,720.34, 268,142.02 and 112,082.45 is: 168,162.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,720.34 : 268,142.02 = 112,082.45 : x
  2. Step 2: Convert to fraction form
    178,720.34/268,142.02 = 112,082.45/x
  3. Step 3: Cross multiply
    178,720.34x = 268,142.02 × 112,082.45
  4. Step 4: Simplify right side
    178,720.34x = 30,054,014,939.70
  5. Step 5: Solve for x
    x = 30,054,014,939.70/178,720.34
  6. Step 6: Final answer
    x = 168,162.25

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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.