Home / 157,434.22-217,259.21-85,814.73

Finding the Fourth Proportional to 157,434.22, 217,259.21 and 85,814.73

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Solution

The fourth proportional to 157,434.22, 217,259.21 and 85,814.73 is: 118,424.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,434.22 : 217,259.21 = 85,814.73 : x
  2. Step 2: Convert to fraction form
    157,434.22/217,259.21 = 85,814.73/x
  3. Step 3: Cross multiply
    157,434.22x = 217,259.21 × 85,814.73
  4. Step 4: Simplify right side
    157,434.22x = 18,644,040,446.16
  5. Step 5: Solve for x
    x = 18,644,040,446.16/157,434.22
  6. Step 6: Final answer
    x = 118,424.32

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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.