Home / 157,372.10-217,170.74-85,752.70

Finding the Fourth Proportional to 157,372.10, 217,170.74 and 85,752.70

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Solution

The fourth proportional to 157,372.10, 217,170.74 and 85,752.70 is: 118,337.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,372.10 : 217,170.74 = 85,752.70 : x
  2. Step 2: Convert to fraction form
    157,372.10/217,170.74 = 85,752.70/x
  3. Step 3: Cross multiply
    157,372.10x = 217,170.74 × 85,752.70
  4. Step 4: Simplify right side
    157,372.10x = 18,622,977,316.00
  5. Step 5: Solve for x
    x = 18,622,977,316.00/157,372.10
  6. Step 6: Final answer
    x = 118,337.22

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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.