Home / 83,211.60-114,590.14-72,305.16

Finding the Fourth Proportional to 83,211.60, 114,590.14 and 72,305.16

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Solution

The fourth proportional to 83,211.60, 114,590.14 and 72,305.16 is: 99,570.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,211.60 : 114,590.14 = 72,305.16 : x
  2. Step 2: Convert to fraction form
    83,211.60/114,590.14 = 72,305.16/x
  3. Step 3: Cross multiply
    83,211.60x = 114,590.14 × 72,305.16
  4. Step 4: Simplify right side
    83,211.60x = 8,285,458,203.36
  5. Step 5: Solve for x
    x = 8,285,458,203.36/83,211.60
  6. Step 6: Final answer
    x = 99,570.95

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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.