Home / 156,210.35-215,578.13-91,682.37

Finding the Fourth Proportional to 156,210.35, 215,578.13 and 91,682.37

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Solution

The fourth proportional to 156,210.35, 215,578.13 and 91,682.37 is: 126,526.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,210.35 : 215,578.13 = 91,682.37 : x
  2. Step 2: Convert to fraction form
    156,210.35/215,578.13 = 91,682.37/x
  3. Step 3: Cross multiply
    156,210.35x = 215,578.13 × 91,682.37
  4. Step 4: Simplify right side
    156,210.35x = 19,764,713,420.16
  5. Step 5: Solve for x
    x = 19,764,713,420.16/156,210.35
  6. Step 6: Final answer
    x = 126,526.28

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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.