Home / 108,212.81-162,098.71-51,881.18

Finding the Fourth Proportional to 108,212.81, 162,098.71 and 51,881.18

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Solution

The fourth proportional to 108,212.81, 162,098.71 and 51,881.18 is: 77,716.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,212.81 : 162,098.71 = 51,881.18 : x
  2. Step 2: Convert to fraction form
    108,212.81/162,098.71 = 51,881.18/x
  3. Step 3: Cross multiply
    108,212.81x = 162,098.71 × 51,881.18
  4. Step 4: Simplify right side
    108,212.81x = 8,409,871,411.08
  5. Step 5: Solve for x
    x = 8,409,871,411.08/108,212.81
  6. Step 6: Final answer
    x = 77,716.05

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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.