Home / 113,182.08-156,194.64-65,431.20

Finding the Fourth Proportional to 113,182.08, 156,194.64 and 65,431.20

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Solution

The fourth proportional to 113,182.08, 156,194.64 and 65,431.20 is: 90,297.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,182.08 : 156,194.64 = 65,431.20 : x
  2. Step 2: Convert to fraction form
    113,182.08/156,194.64 = 65,431.20/x
  3. Step 3: Cross multiply
    113,182.08x = 156,194.64 × 65,431.20
  4. Step 4: Simplify right side
    113,182.08x = 10,220,002,728.77
  5. Step 5: Solve for x
    x = 10,220,002,728.77/113,182.08
  6. Step 6: Final answer
    x = 90,297.00

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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.