Home / 128,937.39-193,342.52-53,022.08

Finding the Fourth Proportional to 128,937.39, 193,342.52 and 53,022.08

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Solution

The fourth proportional to 128,937.39, 193,342.52 and 53,022.08 is: 79,506.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,937.39 : 193,342.52 = 53,022.08 : x
  2. Step 2: Convert to fraction form
    128,937.39/193,342.52 = 53,022.08/x
  3. Step 3: Cross multiply
    128,937.39x = 193,342.52 × 53,022.08
  4. Step 4: Simplify right side
    128,937.39x = 10,251,422,562.84
  5. Step 5: Solve for x
    x = 10,251,422,562.84/128,937.39
  6. Step 6: Final answer
    x = 79,506.98

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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.