Home / 255,154.12-382,730.82-86,691.94

Finding the Fourth Proportional to 255,154.12, 382,730.82 and 86,691.94

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Solution

The fourth proportional to 255,154.12, 382,730.82 and 86,691.94 is: 130,037.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,154.12 : 382,730.82 = 86,691.94 : x
  2. Step 2: Convert to fraction form
    255,154.12/382,730.82 = 86,691.94/x
  3. Step 3: Cross multiply
    255,154.12x = 382,730.82 × 86,691.94
  4. Step 4: Simplify right side
    255,154.12x = 33,179,677,283.59
  5. Step 5: Solve for x
    x = 33,179,677,283.59/255,154.12
  6. Step 6: Final answer
    x = 130,037.79

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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.