Home / 130,348.26-179,967.69-87,891.30

Finding the Fourth Proportional to 130,348.26, 179,967.69 and 87,891.30

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Solution

The fourth proportional to 130,348.26, 179,967.69 and 87,891.30 is: 121,348.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,348.26 : 179,967.69 = 87,891.30 : x
  2. Step 2: Convert to fraction form
    130,348.26/179,967.69 = 87,891.30/x
  3. Step 3: Cross multiply
    130,348.26x = 179,967.69 × 87,891.30
  4. Step 4: Simplify right side
    130,348.26x = 15,817,594,232.10
  5. Step 5: Solve for x
    x = 15,817,594,232.10/130,348.26
  6. Step 6: Final answer
    x = 121,348.72

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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.