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Finding the Fourth Proportional to 157,749.87, 217,699.62 and 89,776.62

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Solution

The fourth proportional to 157,749.87, 217,699.62 and 89,776.62 is: 123,894.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,749.87 : 217,699.62 = 89,776.62 : x
  2. Step 2: Convert to fraction form
    157,749.87/217,699.62 = 89,776.62/x
  3. Step 3: Cross multiply
    157,749.87x = 217,699.62 × 89,776.62
  4. Step 4: Simplify right side
    157,749.87x = 19,544,336,058.88
  5. Step 5: Solve for x
    x = 19,544,336,058.88/157,749.87
  6. Step 6: Final answer
    x = 123,894.47

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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.