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Finding the Fourth Proportional to 99,996.42, 149,990.66 and 55,595.10

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Solution

The fourth proportional to 99,996.42, 149,990.66 and 55,595.10 is: 83,390.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,996.42 : 149,990.66 = 55,595.10 : x
  2. Step 2: Convert to fraction form
    99,996.42/149,990.66 = 55,595.10/x
  3. Step 3: Cross multiply
    99,996.42x = 149,990.66 × 55,595.10
  4. Step 4: Simplify right side
    99,996.42x = 8,338,745,741.77
  5. Step 5: Solve for x
    x = 8,338,745,741.77/99,996.42
  6. Step 6: Final answer
    x = 83,390.44

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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.