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Finding the Fourth Proportional to 178,865, 246,834.66 and 99,377

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Solution

The fourth proportional to 178,865, 246,834.66 and 99,377 is: 137,140.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,865 : 246,834.66 = 99,377 : x
  2. Step 2: Convert to fraction form
    178,865/246,834.66 = 99,377/x
  3. Step 3: Cross multiply
    178,865x = 246,834.66 × 99,377
  4. Step 4: Simplify right side
    178,865x = 24,529,688,006.82
  5. Step 5: Solve for x
    x = 24,529,688,006.82/178,865
  6. Step 6: Final answer
    x = 137,140.79

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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.