Home / 99,134.40-136,805.56-53,812.36

Finding the Fourth Proportional to 99,134.40, 136,805.56 and 53,812.36

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Solution

The fourth proportional to 99,134.40, 136,805.56 and 53,812.36 is: 74,261.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,134.40 : 136,805.56 = 53,812.36 : x
  2. Step 2: Convert to fraction form
    99,134.40/136,805.56 = 53,812.36/x
  3. Step 3: Cross multiply
    99,134.40x = 136,805.56 × 53,812.36
  4. Step 4: Simplify right side
    99,134.40x = 7,361,830,044.72
  5. Step 5: Solve for x
    x = 7,361,830,044.72/99,134.40
  6. Step 6: Final answer
    x = 74,261.10

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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.