Home / 130,946.40-180,648.90-82,519.02

Finding the Fourth Proportional to 130,946.40, 180,648.90 and 82,519.02

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Solution

The fourth proportional to 130,946.40, 180,648.90 and 82,519.02 is: 113,840.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,946.40 : 180,648.90 = 82,519.02 : x
  2. Step 2: Convert to fraction form
    130,946.40/180,648.90 = 82,519.02/x
  3. Step 3: Cross multiply
    130,946.40x = 180,648.90 × 82,519.02
  4. Step 4: Simplify right side
    130,946.40x = 14,906,970,192.08
  5. Step 5: Solve for x
    x = 14,906,970,192.08/130,946.40
  6. Step 6: Final answer
    x = 113,840.24

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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.