Home / 99,215.38-136,917.54-53,894.06

Finding the Fourth Proportional to 99,215.38, 136,917.54 and 53,894.06

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Solution

The fourth proportional to 99,215.38, 136,917.54 and 53,894.06 is: 74,373.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,215.38 : 136,917.54 = 53,894.06 : x
  2. Step 2: Convert to fraction form
    99,215.38/136,917.54 = 53,894.06/x
  3. Step 3: Cross multiply
    99,215.38x = 136,917.54 × 53,894.06
  4. Step 4: Simplify right side
    99,215.38x = 7,379,041,944.67
  5. Step 5: Solve for x
    x = 7,379,041,944.67/99,215.38
  6. Step 6: Final answer
    x = 74,373.97

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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.