Home / 113,528.08-156,668.79-65,809.18

Finding the Fourth Proportional to 113,528.08, 156,668.79 and 65,809.18

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Solution

The fourth proportional to 113,528.08, 156,668.79 and 65,809.18 is: 90,816.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,528.08 : 156,668.79 = 65,809.18 : x
  2. Step 2: Convert to fraction form
    113,528.08/156,668.79 = 65,809.18/x
  3. Step 3: Cross multiply
    113,528.08x = 156,668.79 × 65,809.18
  4. Step 4: Simplify right side
    113,528.08x = 10,310,244,601.49
  5. Step 5: Solve for x
    x = 10,310,244,601.49/113,528.08
  6. Step 6: Final answer
    x = 90,816.69

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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.