Home / 157,511.71-217,358.27-89,519.70

Finding the Fourth Proportional to 157,511.71, 217,358.27 and 89,519.70

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Solution

The fourth proportional to 157,511.71, 217,358.27 and 89,519.70 is: 123,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,511.71 : 217,358.27 = 89,519.70 : x
  2. Step 2: Convert to fraction form
    157,511.71/217,358.27 = 89,519.70/x
  3. Step 3: Cross multiply
    157,511.71x = 217,358.27 × 89,519.70
  4. Step 4: Simplify right side
    157,511.71x = 19,457,846,675.32
  5. Step 5: Solve for x
    x = 19,457,846,675.32/157,511.71
  6. Step 6: Final answer
    x = 123,532.70

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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.