Home / 98,156.49-135,440.10-55,133.93

Finding the Fourth Proportional to 98,156.49, 135,440.10 and 55,133.93

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Solution

The fourth proportional to 98,156.49, 135,440.10 and 55,133.93 is: 76,075.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,156.49 : 135,440.10 = 55,133.93 : x
  2. Step 2: Convert to fraction form
    98,156.49/135,440.10 = 55,133.93/x
  3. Step 3: Cross multiply
    98,156.49x = 135,440.10 × 55,133.93
  4. Step 4: Simplify right side
    98,156.49x = 7,467,344,315.39
  5. Step 5: Solve for x
    x = 7,467,344,315.39/98,156.49
  6. Step 6: Final answer
    x = 76,075.91

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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.