Home / 162,211.08-243,260.26-90,273.76

Finding the Fourth Proportional to 162,211.08, 243,260.26 and 90,273.76

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Solution

The fourth proportional to 162,211.08, 243,260.26 and 90,273.76 is: 135,379.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,211.08 : 243,260.26 = 90,273.76 : x
  2. Step 2: Convert to fraction form
    162,211.08/243,260.26 = 90,273.76/x
  3. Step 3: Cross multiply
    162,211.08x = 243,260.26 × 90,273.76
  4. Step 4: Simplify right side
    162,211.08x = 21,960,018,328.78
  5. Step 5: Solve for x
    x = 21,960,018,328.78/162,211.08
  6. Step 6: Final answer
    x = 135,379.27

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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.