Home / 157,372.02-217,173.05-85,751.87

Finding the Fourth Proportional to 157,372.02, 217,173.05 and 85,751.87

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Solution

The fourth proportional to 157,372.02, 217,173.05 and 85,751.87 is: 118,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,372.02 : 217,173.05 = 85,751.87 : x
  2. Step 2: Convert to fraction form
    157,372.02/217,173.05 = 85,751.87/x
  3. Step 3: Cross multiply
    157,372.02x = 217,173.05 × 85,751.87
  4. Step 4: Simplify right side
    157,372.02x = 18,622,995,265.28
  5. Step 5: Solve for x
    x = 18,622,995,265.28/157,372.02
  6. Step 6: Final answer
    x = 118,337.40

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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.