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Finding the Fourth Proportional to 161,728.52, 242,675.34 and 67,030.28

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Solution

The fourth proportional to 161,728.52, 242,675.34 and 67,030.28 is: 100,579.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,728.52 : 242,675.34 = 67,030.28 : x
  2. Step 2: Convert to fraction form
    161,728.52/242,675.34 = 67,030.28/x
  3. Step 3: Cross multiply
    161,728.52x = 242,675.34 × 67,030.28
  4. Step 4: Simplify right side
    161,728.52x = 16,266,595,989.30
  5. Step 5: Solve for x
    x = 16,266,595,989.30/161,728.52
  6. Step 6: Final answer
    x = 100,579.64

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1.5x scale

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.