Home / 128,784.84-193,175.20-35,290.58

Finding the Fourth Proportional to 128,784.84, 193,175.20 and 35,290.58

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Solution

The fourth proportional to 128,784.84, 193,175.20 and 35,290.58 is: 52,935.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,784.84 : 193,175.20 = 35,290.58 : x
  2. Step 2: Convert to fraction form
    128,784.84/193,175.20 = 35,290.58/x
  3. Step 3: Cross multiply
    128,784.84x = 193,175.20 × 35,290.58
  4. Step 4: Simplify right side
    128,784.84x = 6,817,264,849.62
  5. Step 5: Solve for x
    x = 6,817,264,849.62/128,784.84
  6. Step 6: Final answer
    x = 52,935.31

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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.