Home / 99,127.73-136,450.55-85,558.82

Finding the Fourth Proportional to 99,127.73, 136,450.55 and 85,558.82

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Solution

The fourth proportional to 99,127.73, 136,450.55 and 85,558.82 is: 117,772.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,127.73 : 136,450.55 = 85,558.82 : x
  2. Step 2: Convert to fraction form
    99,127.73/136,450.55 = 85,558.82/x
  3. Step 3: Cross multiply
    99,127.73x = 136,450.55 × 85,558.82
  4. Step 4: Simplify right side
    99,127.73x = 11,674,547,959.68
  5. Step 5: Solve for x
    x = 11,674,547,959.68/99,127.73
  6. Step 6: Final answer
    x = 117,772.78

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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.