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Finding the Fourth Proportional to 99,135.10, 136,808.85 and 53,814.94

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Solution

The fourth proportional to 99,135.10, 136,808.85 and 53,814.94 is: 74,265.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,135.10 : 136,808.85 = 53,814.94 : x
  2. Step 2: Convert to fraction form
    99,135.10/136,808.85 = 53,814.94/x
  3. Step 3: Cross multiply
    99,135.10x = 136,808.85 × 53,814.94
  4. Step 4: Simplify right side
    99,135.10x = 7,362,360,054.22
  5. Step 5: Solve for x
    x = 7,362,360,054.22/99,135.10
  6. Step 6: Final answer
    x = 74,265.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.