Home / 207,909.86-286,915.21-117,265.55

Finding the Fourth Proportional to 207,909.86, 286,915.21 and 117,265.55

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Solution

The fourth proportional to 207,909.86, 286,915.21 and 117,265.55 is: 161,826.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,909.86 : 286,915.21 = 117,265.55 : x
  2. Step 2: Convert to fraction form
    207,909.86/286,915.21 = 117,265.55/x
  3. Step 3: Cross multiply
    207,909.86x = 286,915.21 × 117,265.55
  4. Step 4: Simplify right side
    207,909.86x = 33,645,268,176.28
  5. Step 5: Solve for x
    x = 33,645,268,176.28/207,909.86
  6. Step 6: Final answer
    x = 161,826.23

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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.