Home / 117,148.68-161,667.90-66,177.81

Finding the Fourth Proportional to 117,148.68, 161,667.90 and 66,177.81

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Solution

The fourth proportional to 117,148.68, 161,667.90 and 66,177.81 is: 91,326.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,148.68 : 161,667.90 = 66,177.81 : x
  2. Step 2: Convert to fraction form
    117,148.68/161,667.90 = 66,177.81/x
  3. Step 3: Cross multiply
    117,148.68x = 161,667.90 × 66,177.81
  4. Step 4: Simplify right side
    117,148.68x = 10,698,827,569.30
  5. Step 5: Solve for x
    x = 10,698,827,569.30/117,148.68
  6. Step 6: Final answer
    x = 91,326.92

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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.