Home / 99,134.10-136,807.47-53,813.94

Finding the Fourth Proportional to 99,134.10, 136,807.47 and 53,813.94

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Solution

The fourth proportional to 99,134.10, 136,807.47 and 53,813.94 is: 74,264.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,134.10 : 136,807.47 = 53,813.94 : x
  2. Step 2: Convert to fraction form
    99,134.10/136,807.47 = 53,813.94/x
  3. Step 3: Cross multiply
    99,134.10x = 136,807.47 × 53,813.94
  4. Step 4: Simplify right side
    99,134.10x = 7,362,148,982.13
  5. Step 5: Solve for x
    x = 7,362,148,982.13/99,134.10
  6. Step 6: Final answer
    x = 74,264.55

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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.