Home / 157,426.96-217,242.90-85,805.48

Finding the Fourth Proportional to 157,426.96, 217,242.90 and 85,805.48

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Solution

The fourth proportional to 157,426.96, 217,242.90 and 85,805.48 is: 118,408.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,426.96 : 217,242.90 = 85,805.48 : x
  2. Step 2: Convert to fraction form
    157,426.96/217,242.90 = 85,805.48/x
  3. Step 3: Cross multiply
    157,426.96x = 217,242.90 × 85,805.48
  4. Step 4: Simplify right side
    157,426.96x = 18,640,631,311.09
  5. Step 5: Solve for x
    x = 18,640,631,311.09/157,426.96
  6. Step 6: Final answer
    x = 118,408.13

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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.