Home / 133,920.12-184,763.99-76,518.26

Finding the Fourth Proportional to 133,920.12, 184,763.99 and 76,518.26

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Solution

The fourth proportional to 133,920.12, 184,763.99 and 76,518.26 is: 105,569.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,920.12 : 184,763.99 = 76,518.26 : x
  2. Step 2: Convert to fraction form
    133,920.12/184,763.99 = 76,518.26/x
  3. Step 3: Cross multiply
    133,920.12x = 184,763.99 × 76,518.26
  4. Step 4: Simplify right side
    133,920.12x = 14,137,818,292.93
  5. Step 5: Solve for x
    x = 14,137,818,292.93/133,920.12
  6. Step 6: Final answer
    x = 105,569.04

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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.