Home / 113,416.80-156,512.16-63,114.72

Finding the Fourth Proportional to 113,416.80, 156,512.16 and 63,114.72

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Solution

The fourth proportional to 113,416.80, 156,512.16 and 63,114.72 is: 87,096.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,416.80 : 156,512.16 = 63,114.72 : x
  2. Step 2: Convert to fraction form
    113,416.80/156,512.16 = 63,114.72/x
  3. Step 3: Cross multiply
    113,416.80x = 156,512.16 × 63,114.72
  4. Step 4: Simplify right side
    113,416.80x = 9,878,221,155.00
  5. Step 5: Solve for x
    x = 9,878,221,155.00/113,416.80
  6. Step 6: Final answer
    x = 87,096.63

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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.