Home / 119,895.09-165,443.43-66,176.64

Finding the Fourth Proportional to 119,895.09, 165,443.43 and 66,176.64

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Solution

The fourth proportional to 119,895.09, 165,443.43 and 66,176.64 is: 91,317.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,895.09 : 165,443.43 = 66,176.64 : x
  2. Step 2: Convert to fraction form
    119,895.09/165,443.43 = 66,176.64/x
  3. Step 3: Cross multiply
    119,895.09x = 165,443.43 × 66,176.64
  4. Step 4: Simplify right side
    119,895.09x = 10,948,490,307.48
  5. Step 5: Solve for x
    x = 10,948,490,307.48/119,895.09
  6. Step 6: Final answer
    x = 91,317.25

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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.