Home / 156,097.26-215,438.13-88,141.50

Finding the Fourth Proportional to 156,097.26, 215,438.13 and 88,141.50

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Solution

The fourth proportional to 156,097.26, 215,438.13 and 88,141.50 is: 121,648.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,097.26 : 215,438.13 = 88,141.50 : x
  2. Step 2: Convert to fraction form
    156,097.26/215,438.13 = 88,141.50/x
  3. Step 3: Cross multiply
    156,097.26x = 215,438.13 × 88,141.50
  4. Step 4: Simplify right side
    156,097.26x = 18,989,039,935.40
  5. Step 5: Solve for x
    x = 18,989,039,935.40/156,097.26
  6. Step 6: Final answer
    x = 121,648.77

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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.