Home / 131,650.10-181,676.40-71,220.58

Finding the Fourth Proportional to 131,650.10, 181,676.40 and 71,220.58

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Solution

The fourth proportional to 131,650.10, 181,676.40 and 71,220.58 is: 98,284.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,650.10 : 181,676.40 = 71,220.58 : x
  2. Step 2: Convert to fraction form
    131,650.10/181,676.40 = 71,220.58/x
  3. Step 3: Cross multiply
    131,650.10x = 181,676.40 × 71,220.58
  4. Step 4: Simplify right side
    131,650.10x = 12,939,098,580.31
  5. Step 5: Solve for x
    x = 12,939,098,580.31/131,650.10
  6. Step 6: Final answer
    x = 98,284.00

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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.