Home / 130,995.41-180,721.18-82,581.41

Finding the Fourth Proportional to 130,995.41, 180,721.18 and 82,581.41

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Solution

The fourth proportional to 130,995.41, 180,721.18 and 82,581.41 is: 113,929.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,995.41 : 180,721.18 = 82,581.41 : x
  2. Step 2: Convert to fraction form
    130,995.41/180,721.18 = 82,581.41/x
  3. Step 3: Cross multiply
    130,995.41x = 180,721.18 × 82,581.41
  4. Step 4: Simplify right side
    130,995.41x = 14,924,210,106.61
  5. Step 5: Solve for x
    x = 14,924,210,106.61/130,995.41
  6. Step 6: Final answer
    x = 113,929.26

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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.