Home / 108,861.03-163,215-42,245.01

Finding the Fourth Proportional to 108,861.03, 163,215 and 42,245.01

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Solution

The fourth proportional to 108,861.03, 163,215 and 42,245.01 is: 63,337.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,861.03 : 163,215 = 42,245.01 : x
  2. Step 2: Convert to fraction form
    108,861.03/163,215 = 42,245.01/x
  3. Step 3: Cross multiply
    108,861.03x = 163,215 × 42,245.01
  4. Step 4: Simplify right side
    108,861.03x = 6,895,019,307.15
  5. Step 5: Solve for x
    x = 6,895,019,307.15/108,861.03
  6. Step 6: Final answer
    x = 63,337.81

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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.