Home / 157,388.17-217,188.91-89,404.94

Finding the Fourth Proportional to 157,388.17, 217,188.91 and 89,404.94

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Solution

The fourth proportional to 157,388.17, 217,188.91 and 89,404.94 is: 123,374.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,388.17 : 217,188.91 = 89,404.94 : x
  2. Step 2: Convert to fraction form
    157,388.17/217,188.91 = 89,404.94/x
  3. Step 3: Cross multiply
    157,388.17x = 217,188.91 × 89,404.94
  4. Step 4: Simplify right side
    157,388.17x = 19,417,761,467.22
  5. Step 5: Solve for x
    x = 19,417,761,467.22/157,388.17
  6. Step 6: Final answer
    x = 123,374.97

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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.