Home / 99,129.25-136,796.20-53,807.32

Finding the Fourth Proportional to 99,129.25, 136,796.20 and 53,807.32

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Solution

The fourth proportional to 99,129.25, 136,796.20 and 53,807.32 is: 74,252.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,129.25 : 136,796.20 = 53,807.32 : x
  2. Step 2: Convert to fraction form
    99,129.25/136,796.20 = 53,807.32/x
  3. Step 3: Cross multiply
    99,129.25x = 136,796.20 × 53,807.32
  4. Step 4: Simplify right side
    99,129.25x = 7,360,636,908.18
  5. Step 5: Solve for x
    x = 7,360,636,908.18/99,129.25
  6. Step 6: Final answer
    x = 74,252.93

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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.