Home / 156,731.75-216,289.82-89,663.75

Finding the Fourth Proportional to 156,731.75, 216,289.82 and 89,663.75

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Solution

The fourth proportional to 156,731.75, 216,289.82 and 89,663.75 is: 123,735.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,731.75 : 216,289.82 = 89,663.75 : x
  2. Step 2: Convert to fraction form
    156,731.75/216,289.82 = 89,663.75/x
  3. Step 3: Cross multiply
    156,731.75x = 216,289.82 × 89,663.75
  4. Step 4: Simplify right side
    156,731.75x = 19,393,356,348.03
  5. Step 5: Solve for x
    x = 19,393,356,348.03/156,731.75
  6. Step 6: Final answer
    x = 123,735.98

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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.