Home / 133,023.30-199,534.95-77,727.30

Finding the Fourth Proportional to 133,023.30, 199,534.95 and 77,727.30

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Solution

The fourth proportional to 133,023.30, 199,534.95 and 77,727.30 is: 116,590.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,023.30 : 199,534.95 = 77,727.30 : x
  2. Step 2: Convert to fraction form
    133,023.30/199,534.95 = 77,727.30/x
  3. Step 3: Cross multiply
    133,023.30x = 199,534.95 × 77,727.30
  4. Step 4: Simplify right side
    133,023.30x = 15,509,312,919.14
  5. Step 5: Solve for x
    x = 15,509,312,919.14/133,023.30
  6. Step 6: Final answer
    x = 116,590.95

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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.