Home / 133,066.10-199,655.85-69,934.70

Finding the Fourth Proportional to 133,066.10, 199,655.85 and 69,934.70

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Solution

The fourth proportional to 133,066.10, 199,655.85 and 69,934.70 is: 104,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,066.10 : 199,655.85 = 69,934.70 : x
  2. Step 2: Convert to fraction form
    133,066.10/199,655.85 = 69,934.70/x
  3. Step 3: Cross multiply
    133,066.10x = 199,655.85 × 69,934.70
  4. Step 4: Simplify right side
    133,066.10x = 13,962,871,973.00
  5. Step 5: Solve for x
    x = 13,962,871,973.00/133,066.10
  6. Step 6: Final answer
    x = 104,931.85

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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.