Home / 157,895.79-217,896.24-85,298.70

Finding the Fourth Proportional to 157,895.79, 217,896.24 and 85,298.70

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Solution

The fourth proportional to 157,895.79, 217,896.24 and 85,298.70 is: 117,712.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,895.79 : 217,896.24 = 85,298.70 : x
  2. Step 2: Convert to fraction form
    157,895.79/217,896.24 = 85,298.70/x
  3. Step 3: Cross multiply
    157,895.79x = 217,896.24 × 85,298.70
  4. Step 4: Simplify right side
    157,895.79x = 18,586,266,006.89
  5. Step 5: Solve for x
    x = 18,586,266,006.89/157,895.79
  6. Step 6: Final answer
    x = 117,712.23

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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.