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Finding the Fourth Proportional to 162,171.60, 242,601.30 and 142,488.60

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Solution

The fourth proportional to 162,171.60, 242,601.30 and 142,488.60 is: 213,156.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,171.60 : 242,601.30 = 142,488.60 : x
  2. Step 2: Convert to fraction form
    162,171.60/242,601.30 = 142,488.60/x
  3. Step 3: Cross multiply
    162,171.60x = 242,601.30 × 142,488.60
  4. Step 4: Simplify right side
    162,171.60x = 34,567,919,595.18
  5. Step 5: Solve for x
    x = 34,567,919,595.18/162,171.60
  6. Step 6: Final answer
    x = 213,156.43

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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.