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Finding the Fourth Proportional to 157,018.62, 216,725.40 and 89,076.09

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Solution

The fourth proportional to 157,018.62, 216,725.40 and 89,076.09 is: 122,947.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,018.62 : 216,725.40 = 89,076.09 : x
  2. Step 2: Convert to fraction form
    157,018.62/216,725.40 = 89,076.09/x
  3. Step 3: Cross multiply
    157,018.62x = 216,725.40 × 89,076.09
  4. Step 4: Simplify right side
    157,018.62x = 19,305,051,235.69
  5. Step 5: Solve for x
    x = 19,305,051,235.69/157,018.62
  6. Step 6: Final answer
    x = 122,947.53

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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.