Home / 157,628.94-217,528.56-86,010.45

Finding the Fourth Proportional to 157,628.94, 217,528.56 and 86,010.45

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Solution

The fourth proportional to 157,628.94, 217,528.56 and 86,010.45 is: 118,694.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,628.94 : 217,528.56 = 86,010.45 : x
  2. Step 2: Convert to fraction form
    157,628.94/217,528.56 = 86,010.45/x
  3. Step 3: Cross multiply
    157,628.94x = 217,528.56 × 86,010.45
  4. Step 4: Simplify right side
    157,628.94x = 18,709,729,333.45
  5. Step 5: Solve for x
    x = 18,709,729,333.45/157,628.94
  6. Step 6: Final answer
    x = 118,694.76

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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.