Home / 157,515.57-217,376.94-89,535.39

Finding the Fourth Proportional to 157,515.57, 217,376.94 and 89,535.39

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Solution

The fourth proportional to 157,515.57, 217,376.94 and 89,535.39 is: 123,561.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,515.57 : 217,376.94 = 89,535.39 : x
  2. Step 2: Convert to fraction form
    157,515.57/217,376.94 = 89,535.39/x
  3. Step 3: Cross multiply
    157,515.57x = 217,376.94 × 89,535.39
  4. Step 4: Simplify right side
    157,515.57x = 19,462,929,099.91
  5. Step 5: Solve for x
    x = 19,462,929,099.91/157,515.57
  6. Step 6: Final answer
    x = 123,561.94

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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.