Home / 117,962.64-162,783-70,221.24

Finding the Fourth Proportional to 117,962.64, 162,783 and 70,221.24

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Solution

The fourth proportional to 117,962.64, 162,783 and 70,221.24 is: 96,902.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,962.64 : 162,783 = 70,221.24 : x
  2. Step 2: Convert to fraction form
    117,962.64/162,783 = 70,221.24/x
  3. Step 3: Cross multiply
    117,962.64x = 162,783 × 70,221.24
  4. Step 4: Simplify right side
    117,962.64x = 11,430,824,110.92
  5. Step 5: Solve for x
    x = 11,430,824,110.92/117,962.64
  6. Step 6: Final answer
    x = 96,902.07

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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.