Home / 119,931.93-165,505.01-66,215.80

Finding the Fourth Proportional to 119,931.93, 165,505.01 and 66,215.80

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Solution

The fourth proportional to 119,931.93, 165,505.01 and 66,215.80 is: 91,377.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,931.93 : 165,505.01 = 66,215.80 : x
  2. Step 2: Convert to fraction form
    119,931.93/165,505.01 = 66,215.80/x
  3. Step 3: Cross multiply
    119,931.93x = 165,505.01 × 66,215.80
  4. Step 4: Simplify right side
    119,931.93x = 10,959,046,516.96
  5. Step 5: Solve for x
    x = 10,959,046,516.96/119,931.93
  6. Step 6: Final answer
    x = 91,377.22

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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.