Home / 157,749.42-217,713.29-89,782.92

Finding the Fourth Proportional to 157,749.42, 217,713.29 and 89,782.92

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Solution

The fourth proportional to 157,749.42, 217,713.29 and 89,782.92 is: 123,911.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,749.42 : 217,713.29 = 89,782.92 : x
  2. Step 2: Convert to fraction form
    157,749.42/217,713.29 = 89,782.92/x
  3. Step 3: Cross multiply
    157,749.42x = 217,713.29 × 89,782.92
  4. Step 4: Simplify right side
    157,749.42x = 19,546,934,899.01
  5. Step 5: Solve for x
    x = 19,546,934,899.01/157,749.42
  6. Step 6: Final answer
    x = 123,911.29

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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.