Home / 156,010.17-215,320.49-90,588.87

Finding the Fourth Proportional to 156,010.17, 215,320.49 and 90,588.87

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Solution

The fourth proportional to 156,010.17, 215,320.49 and 90,588.87 is: 125,028.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,010.17 : 215,320.49 = 90,588.87 : x
  2. Step 2: Convert to fraction form
    156,010.17/215,320.49 = 90,588.87/x
  3. Step 3: Cross multiply
    156,010.17x = 215,320.49 × 90,588.87
  4. Step 4: Simplify right side
    156,010.17x = 19,505,639,424.00
  5. Step 5: Solve for x
    x = 19,505,639,424.00/156,010.17
  6. Step 6: Final answer
    x = 125,028.00

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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.