Home / 161,457.21-242,186.03-77,197.58

Finding the Fourth Proportional to 161,457.21, 242,186.03 and 77,197.58

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Solution

The fourth proportional to 161,457.21, 242,186.03 and 77,197.58 is: 115,796.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,457.21 : 242,186.03 = 77,197.58 : x
  2. Step 2: Convert to fraction form
    161,457.21/242,186.03 = 77,197.58/x
  3. Step 3: Cross multiply
    161,457.21x = 242,186.03 × 77,197.58
  4. Step 4: Simplify right side
    161,457.21x = 18,696,173,828.89
  5. Step 5: Solve for x
    x = 18,696,173,828.89/161,457.21
  6. Step 6: Final answer
    x = 115,796.46

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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.