Home / 131,665.40-181,698.26-71,236.01

Finding the Fourth Proportional to 131,665.40, 181,698.26 and 71,236.01

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Solution

The fourth proportional to 131,665.40, 181,698.26 and 71,236.01 is: 98,305.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,665.40 : 181,698.26 = 71,236.01 : x
  2. Step 2: Convert to fraction form
    131,665.40/181,698.26 = 71,236.01/x
  3. Step 3: Cross multiply
    131,665.40x = 181,698.26 × 71,236.01
  4. Step 4: Simplify right side
    131,665.40x = 12,943,457,801.67
  5. Step 5: Solve for x
    x = 12,943,457,801.67/131,665.40
  6. Step 6: Final answer
    x = 98,305.69

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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.