Home / 99,457.89-149,186.84-29,331.74

Finding the Fourth Proportional to 99,457.89, 149,186.84 and 29,331.74

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Solution

The fourth proportional to 99,457.89, 149,186.84 and 29,331.74 is: 43,997.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,457.89 : 149,186.84 = 29,331.74 : x
  2. Step 2: Convert to fraction form
    99,457.89/149,186.84 = 29,331.74/x
  3. Step 3: Cross multiply
    99,457.89x = 149,186.84 × 29,331.74
  4. Step 4: Simplify right side
    99,457.89x = 4,375,909,602.30
  5. Step 5: Solve for x
    x = 4,375,909,602.30/99,457.89
  6. Step 6: Final answer
    x = 43,997.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.