Home / 99,051.12-136,699.84-56,601.36

Finding the Fourth Proportional to 99,051.12, 136,699.84 and 56,601.36

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Solution

The fourth proportional to 99,051.12, 136,699.84 and 56,601.36 is: 78,115.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,051.12 : 136,699.84 = 56,601.36 : x
  2. Step 2: Convert to fraction form
    99,051.12/136,699.84 = 56,601.36/x
  3. Step 3: Cross multiply
    99,051.12x = 136,699.84 × 56,601.36
  4. Step 4: Simplify right side
    99,051.12x = 7,737,396,855.78
  5. Step 5: Solve for x
    x = 7,737,396,855.78/99,051.12
  6. Step 6: Final answer
    x = 78,115.19

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Why These Related Problems?

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