Home / 128,785.84-193,176.70-35,291.58

Finding the Fourth Proportional to 128,785.84, 193,176.70 and 35,291.58

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Solution

The fourth proportional to 128,785.84, 193,176.70 and 35,291.58 is: 52,936.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,785.84 : 193,176.70 = 35,291.58 : x
  2. Step 2: Convert to fraction form
    128,785.84/193,176.70 = 35,291.58/x
  3. Step 3: Cross multiply
    128,785.84x = 193,176.70 × 35,291.58
  4. Step 4: Simplify right side
    128,785.84x = 6,817,510,962.19
  5. Step 5: Solve for x
    x = 6,817,510,962.19/128,785.84
  6. Step 6: Final answer
    x = 52,936.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.