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Finding the Fourth Proportional to 99,670.77, 149,339.67 and 70,035.54

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Solution

The fourth proportional to 99,670.77, 149,339.67 and 70,035.54 is: 104,936.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,670.77 : 149,339.67 = 70,035.54 : x
  2. Step 2: Convert to fraction form
    99,670.77/149,339.67 = 70,035.54/x
  3. Step 3: Cross multiply
    99,670.77x = 149,339.67 × 70,035.54
  4. Step 4: Simplify right side
    99,670.77x = 10,459,084,431.87
  5. Step 5: Solve for x
    x = 10,459,084,431.87/99,670.77
  6. Step 6: Final answer
    x = 104,936.33

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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.