Home / 99,186.61-136,877.10-53,864.28

Finding the Fourth Proportional to 99,186.61, 136,877.10 and 53,864.28

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Solution

The fourth proportional to 99,186.61, 136,877.10 and 53,864.28 is: 74,332.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,186.61 : 136,877.10 = 53,864.28 : x
  2. Step 2: Convert to fraction form
    99,186.61/136,877.10 = 53,864.28/x
  3. Step 3: Cross multiply
    99,186.61x = 136,877.10 × 53,864.28
  4. Step 4: Simplify right side
    99,186.61x = 7,372,786,439.99
  5. Step 5: Solve for x
    x = 7,372,786,439.99/99,186.61
  6. Step 6: Final answer
    x = 74,332.48

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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.