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Finding the Fourth Proportional to 154,898.70, 232,047.45 and 90,701.70

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Solution

The fourth proportional to 154,898.70, 232,047.45 and 90,701.70 is: 135,876.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,898.70 : 232,047.45 = 90,701.70 : x
  2. Step 2: Convert to fraction form
    154,898.70/232,047.45 = 90,701.70/x
  3. Step 3: Cross multiply
    154,898.70x = 232,047.45 × 90,701.70
  4. Step 4: Simplify right side
    154,898.70x = 21,047,098,195.67
  5. Step 5: Solve for x
    x = 21,047,098,195.67/154,898.70
  6. Step 6: Final answer
    x = 135,876.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.