Home / 116,633.45-161,031.63-89,728.49

Finding the Fourth Proportional to 116,633.45, 161,031.63 and 89,728.49

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Solution

The fourth proportional to 116,633.45, 161,031.63 and 89,728.49 is: 123,884.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,633.45 : 161,031.63 = 89,728.49 : x
  2. Step 2: Convert to fraction form
    116,633.45/161,031.63 = 89,728.49/x
  3. Step 3: Cross multiply
    116,633.45x = 161,031.63 × 89,728.49
  4. Step 4: Simplify right side
    116,633.45x = 14,449,124,196.98
  5. Step 5: Solve for x
    x = 14,449,124,196.98/116,633.45
  6. Step 6: Final answer
    x = 123,884.91

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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.