Home / 108,416.32-162,624.68-71,211.40

Finding the Fourth Proportional to 108,416.32, 162,624.68 and 71,211.40

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Solution

The fourth proportional to 108,416.32, 162,624.68 and 71,211.40 is: 106,817.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,416.32 : 162,624.68 = 71,211.40 : x
  2. Step 2: Convert to fraction form
    108,416.32/162,624.68 = 71,211.40/x
  3. Step 3: Cross multiply
    108,416.32x = 162,624.68 × 71,211.40
  4. Step 4: Simplify right side
    108,416.32x = 11,580,731,137.35
  5. Step 5: Solve for x
    x = 11,580,731,137.35/108,416.32
  6. Step 6: Final answer
    x = 106,817.23

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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.