Home / 156,380.36-215,808.21-88,393.26

Finding the Fourth Proportional to 156,380.36, 215,808.21 and 88,393.26

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Solution

The fourth proportional to 156,380.36, 215,808.21 and 88,393.26 is: 121,984.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,380.36 : 215,808.21 = 88,393.26 : x
  2. Step 2: Convert to fraction form
    156,380.36/215,808.21 = 88,393.26/x
  3. Step 3: Cross multiply
    156,380.36x = 215,808.21 × 88,393.26
  4. Step 4: Simplify right side
    156,380.36x = 19,075,991,216.66
  5. Step 5: Solve for x
    x = 19,075,991,216.66/156,380.36
  6. Step 6: Final answer
    x = 121,984.57

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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.