Home / 156,996.49-216,660.84-89,941.45

Finding the Fourth Proportional to 156,996.49, 216,660.84 and 89,941.45

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Solution

The fourth proportional to 156,996.49, 216,660.84 and 89,941.45 is: 124,122.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,996.49 : 216,660.84 = 89,941.45 : x
  2. Step 2: Convert to fraction form
    156,996.49/216,660.84 = 89,941.45/x
  3. Step 3: Cross multiply
    156,996.49x = 216,660.84 × 89,941.45
  4. Step 4: Simplify right side
    156,996.49x = 19,486,790,107.82
  5. Step 5: Solve for x
    x = 19,486,790,107.82/156,996.49
  6. Step 6: Final answer
    x = 124,122.46

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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.