Home / 99,108.07-136,770.14-53,786.45

Finding the Fourth Proportional to 99,108.07, 136,770.14 and 53,786.45

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Solution

The fourth proportional to 99,108.07, 136,770.14 and 53,786.45 is: 74,225.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,108.07 : 136,770.14 = 53,786.45 : x
  2. Step 2: Convert to fraction form
    99,108.07/136,770.14 = 53,786.45/x
  3. Step 3: Cross multiply
    99,108.07x = 136,770.14 × 53,786.45
  4. Step 4: Simplify right side
    99,108.07x = 7,356,379,343.82
  5. Step 5: Solve for x
    x = 7,356,379,343.82/99,108.07
  6. Step 6: Final answer
    x = 74,225.84

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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.