Home / 113,328.09-156,383.12-65,584.40

Finding the Fourth Proportional to 113,328.09, 156,383.12 and 65,584.40

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Solution

The fourth proportional to 113,328.09, 156,383.12 and 65,584.40 is: 90,500.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,328.09 : 156,383.12 = 65,584.40 : x
  2. Step 2: Convert to fraction form
    113,328.09/156,383.12 = 65,584.40/x
  3. Step 3: Cross multiply
    113,328.09x = 156,383.12 × 65,584.40
  4. Step 4: Simplify right side
    113,328.09x = 10,256,292,477.37
  5. Step 5: Solve for x
    x = 10,256,292,477.37/113,328.09
  6. Step 6: Final answer
    x = 90,500.89

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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.