Home / 119,915.32-165,478.80-66,199.18

Finding the Fourth Proportional to 119,915.32, 165,478.80 and 66,199.18

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Solution

The fourth proportional to 119,915.32, 165,478.80 and 66,199.18 is: 91,352.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,915.32 : 165,478.80 = 66,199.18 : x
  2. Step 2: Convert to fraction form
    119,915.32/165,478.80 = 66,199.18/x
  3. Step 3: Cross multiply
    119,915.32x = 165,478.80 × 66,199.18
  4. Step 4: Simplify right side
    119,915.32x = 10,954,560,867.38
  5. Step 5: Solve for x
    x = 10,954,560,867.38/119,915.32
  6. Step 6: Final answer
    x = 91,352.48

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1.5x scale

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.