Home / 86,686.82-119,444.73-77,152.58

Finding the Fourth Proportional to 86,686.82, 119,444.73 and 77,152.58

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Solution

The fourth proportional to 86,686.82, 119,444.73 and 77,152.58 is: 106,307.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,686.82 : 119,444.73 = 77,152.58 : x
  2. Step 2: Convert to fraction form
    86,686.82/119,444.73 = 77,152.58/x
  3. Step 3: Cross multiply
    86,686.82x = 119,444.73 × 77,152.58
  4. Step 4: Simplify right side
    86,686.82x = 9,215,469,086.90
  5. Step 5: Solve for x
    x = 9,215,469,086.90/86,686.82
  6. Step 6: Final answer
    x = 106,307.62

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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.