Home / 157,372.12-217,170.72-85,752.76

Finding the Fourth Proportional to 157,372.12, 217,170.72 and 85,752.76

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Solution

The fourth proportional to 157,372.12, 217,170.72 and 85,752.76 is: 118,337.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,372.12 : 217,170.72 = 85,752.76 : x
  2. Step 2: Convert to fraction form
    157,372.12/217,170.72 = 85,752.76/x
  3. Step 3: Cross multiply
    157,372.12x = 217,170.72 × 85,752.76
  4. Step 4: Simplify right side
    157,372.12x = 18,622,988,631.19
  5. Step 5: Solve for x
    x = 18,622,988,631.19/157,372.12
  6. Step 6: Final answer
    x = 118,337.28

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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.