Home / 113,580.16-156,736.94-65,190.05

Finding the Fourth Proportional to 113,580.16, 156,736.94 and 65,190.05

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Solution

The fourth proportional to 113,580.16, 156,736.94 and 65,190.05 is: 89,960.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,580.16 : 156,736.94 = 65,190.05 : x
  2. Step 2: Convert to fraction form
    113,580.16/156,736.94 = 65,190.05/x
  3. Step 3: Cross multiply
    113,580.16x = 156,736.94 × 65,190.05
  4. Step 4: Simplify right side
    113,580.16x = 10,217,688,400.63
  5. Step 5: Solve for x
    x = 10,217,688,400.63/113,580.16
  6. Step 6: Final answer
    x = 89,960.16

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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.