Home / 133,089.13-199,633.70-77,646.25

Finding the Fourth Proportional to 133,089.13, 199,633.70 and 77,646.25

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Solution

The fourth proportional to 133,089.13, 199,633.70 and 77,646.25 is: 116,469.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,089.13 : 199,633.70 = 77,646.25 : x
  2. Step 2: Convert to fraction form
    133,089.13/199,633.70 = 77,646.25/x
  3. Step 3: Cross multiply
    133,089.13x = 199,633.70 × 77,646.25
  4. Step 4: Simplify right side
    133,089.13x = 15,500,808,178.63
  5. Step 5: Solve for x
    x = 15,500,808,178.63/133,089.13
  6. Step 6: Final answer
    x = 116,469.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.