Home / 131,741.83-181,803.77-71,312.28

Finding the Fourth Proportional to 131,741.83, 181,803.77 and 71,312.28

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Solution

The fourth proportional to 131,741.83, 181,803.77 and 71,312.28 is: 98,410.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,741.83 : 181,803.77 = 71,312.28 : x
  2. Step 2: Convert to fraction form
    131,741.83/181,803.77 = 71,312.28/x
  3. Step 3: Cross multiply
    131,741.83x = 181,803.77 × 71,312.28
  4. Step 4: Simplify right side
    131,741.83x = 12,964,841,351.30
  5. Step 5: Solve for x
    x = 12,964,841,351.30/131,741.83
  6. Step 6: Final answer
    x = 98,410.97

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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.