Home / 156,222.07-215,525.41-90,800.01

Finding the Fourth Proportional to 156,222.07, 215,525.41 and 90,800.01

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Solution

The fourth proportional to 156,222.07, 215,525.41 and 90,800.01 is: 125,268.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,222.07 : 215,525.41 = 90,800.01 : x
  2. Step 2: Convert to fraction form
    156,222.07/215,525.41 = 90,800.01/x
  3. Step 3: Cross multiply
    156,222.07x = 215,525.41 × 90,800.01
  4. Step 4: Simplify right side
    156,222.07x = 19,569,709,156.25
  5. Step 5: Solve for x
    x = 19,569,709,156.25/156,222.07
  6. Step 6: Final answer
    x = 125,268.53

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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.