Home / 130,836.48-180,553.44-71,220.48

Finding the Fourth Proportional to 130,836.48, 180,553.44 and 71,220.48

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Solution

The fourth proportional to 130,836.48, 180,553.44 and 71,220.48 is: 98,283.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,836.48 : 180,553.44 = 71,220.48 : x
  2. Step 2: Convert to fraction form
    130,836.48/180,553.44 = 71,220.48/x
  3. Step 3: Cross multiply
    130,836.48x = 180,553.44 × 71,220.48
  4. Step 4: Simplify right side
    130,836.48x = 12,859,102,662.45
  5. Step 5: Solve for x
    x = 12,859,102,662.45/130,836.48
  6. Step 6: Final answer
    x = 98,283.77

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1.5x scale

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.