Home / 191,395.76-286,997.10-111,459.56

Finding the Fourth Proportional to 191,395.76, 286,997.10 and 111,459.56

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Solution

The fourth proportional to 191,395.76, 286,997.10 and 111,459.56 is: 167,133.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,395.76 : 286,997.10 = 111,459.56 : x
  2. Step 2: Convert to fraction form
    191,395.76/286,997.10 = 111,459.56/x
  3. Step 3: Cross multiply
    191,395.76x = 286,997.10 × 111,459.56
  4. Step 4: Simplify right side
    191,395.76x = 31,988,570,487.28
  5. Step 5: Solve for x
    x = 31,988,570,487.28/191,395.76
  6. Step 6: Final answer
    x = 167,133.12

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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.