Home / 157,491.36-217,333.28-85,872.76

Finding the Fourth Proportional to 157,491.36, 217,333.28 and 85,872.76

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Solution

The fourth proportional to 157,491.36, 217,333.28 and 85,872.76 is: 118,501.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,491.36 : 217,333.28 = 85,872.76 : x
  2. Step 2: Convert to fraction form
    157,491.36/217,333.28 = 85,872.76/x
  3. Step 3: Cross multiply
    157,491.36x = 217,333.28 × 85,872.76
  4. Step 4: Simplify right side
    157,491.36x = 18,663,008,593.45
  5. Step 5: Solve for x
    x = 18,663,008,593.45/157,491.36
  6. Step 6: Final answer
    x = 118,501.79

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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.