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Finding the Fourth Proportional to 150,956.79, 208,288.58 and 83,887.35

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Solution

The fourth proportional to 150,956.79, 208,288.58 and 83,887.35 is: 115,746.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,956.79 : 208,288.58 = 83,887.35 : x
  2. Step 2: Convert to fraction form
    150,956.79/208,288.58 = 83,887.35/x
  3. Step 3: Cross multiply
    150,956.79x = 208,288.58 × 83,887.35
  4. Step 4: Simplify right side
    150,956.79x = 17,472,776,592.03
  5. Step 5: Solve for x
    x = 17,472,776,592.03/150,956.79
  6. Step 6: Final answer
    x = 115,746.87

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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.