Home / 171,432.40-257,185.32-87,204.28

Finding the Fourth Proportional to 171,432.40, 257,185.32 and 87,204.28

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Solution

The fourth proportional to 171,432.40, 257,185.32 and 87,204.28 is: 130,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,432.40 : 257,185.32 = 87,204.28 : x
  2. Step 2: Convert to fraction form
    171,432.40/257,185.32 = 87,204.28/x
  3. Step 3: Cross multiply
    171,432.40x = 257,185.32 × 87,204.28
  4. Step 4: Simplify right side
    171,432.40x = 22,427,660,657.17
  5. Step 5: Solve for x
    x = 22,427,660,657.17/171,432.40
  6. Step 6: Final answer
    x = 130,825.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.