Home / 131,628.50-181,646.82-71,199.32

Finding the Fourth Proportional to 131,628.50, 181,646.82 and 71,199.32

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Solution

The fourth proportional to 131,628.50, 181,646.82 and 71,199.32 is: 98,254.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,628.50 : 181,646.82 = 71,199.32 : x
  2. Step 2: Convert to fraction form
    131,628.50/181,646.82 = 71,199.32/x
  3. Step 3: Cross multiply
    131,628.50x = 181,646.82 × 71,199.32
  4. Step 4: Simplify right side
    131,628.50x = 12,933,130,064.16
  5. Step 5: Solve for x
    x = 12,933,130,064.16/131,628.50
  6. Step 6: Final answer
    x = 98,254.79

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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.