Home / 113,630.72-156,825.60-63,334.40

Finding the Fourth Proportional to 113,630.72, 156,825.60 and 63,334.40

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Solution

The fourth proportional to 113,630.72, 156,825.60 and 63,334.40 is: 87,409.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,630.72 : 156,825.60 = 63,334.40 : x
  2. Step 2: Convert to fraction form
    113,630.72/156,825.60 = 63,334.40/x
  3. Step 3: Cross multiply
    113,630.72x = 156,825.60 × 63,334.40
  4. Step 4: Simplify right side
    113,630.72x = 9,932,455,280.64
  5. Step 5: Solve for x
    x = 9,932,455,280.64/113,630.72
  6. Step 6: Final answer
    x = 87,409.95

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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.