Home / 99,185.12-136,815.36-58,872.32

Finding the Fourth Proportional to 99,185.12, 136,815.36 and 58,872.32

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Solution

The fourth proportional to 99,185.12, 136,815.36 and 58,872.32 is: 81,208.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,185.12 : 136,815.36 = 58,872.32 : x
  2. Step 2: Convert to fraction form
    99,185.12/136,815.36 = 58,872.32/x
  3. Step 3: Cross multiply
    99,185.12x = 136,815.36 × 58,872.32
  4. Step 4: Simplify right side
    99,185.12x = 8,054,637,654.84
  5. Step 5: Solve for x
    x = 8,054,637,654.84/99,185.12
  6. Step 6: Final answer
    x = 81,208.13

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1.5x scale

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.