Home / 130,097.29-179,468.49-87,078.61

Finding the Fourth Proportional to 130,097.29, 179,468.49 and 87,078.61

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Solution

The fourth proportional to 130,097.29, 179,468.49 and 87,078.61 is: 120,124.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,097.29 : 179,468.49 = 87,078.61 : x
  2. Step 2: Convert to fraction form
    130,097.29/179,468.49 = 87,078.61/x
  3. Step 3: Cross multiply
    130,097.29x = 179,468.49 × 87,078.61
  4. Step 4: Simplify right side
    130,097.29x = 15,627,866,648.00
  5. Step 5: Solve for x
    x = 15,627,866,648.00/130,097.29
  6. Step 6: Final answer
    x = 120,124.46

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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.