Home / 156,219.10-215,571.90-88,238.98

Finding the Fourth Proportional to 156,219.10, 215,571.90 and 88,238.98

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Solution

The fourth proportional to 156,219.10, 215,571.90 and 88,238.98 is: 121,763.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,219.10 : 215,571.90 = 88,238.98 : x
  2. Step 2: Convert to fraction form
    156,219.10/215,571.90 = 88,238.98/x
  3. Step 3: Cross multiply
    156,219.10x = 215,571.90 × 88,238.98
  4. Step 4: Simplify right side
    156,219.10x = 19,021,844,572.66
  5. Step 5: Solve for x
    x = 19,021,844,572.66/156,219.10
  6. Step 6: Final answer
    x = 121,763.89

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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.