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Finding the Fourth Proportional to 104,972.59, 144,818.56 and 61,935

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Solution

The fourth proportional to 104,972.59, 144,818.56 and 61,935 is: 85,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,972.59 : 144,818.56 = 61,935 : x
  2. Step 2: Convert to fraction form
    104,972.59/144,818.56 = 61,935/x
  3. Step 3: Cross multiply
    104,972.59x = 144,818.56 × 61,935
  4. Step 4: Simplify right side
    104,972.59x = 8,969,337,513.60
  5. Step 5: Solve for x
    x = 8,969,337,513.60/104,972.59
  6. Step 6: Final answer
    x = 85,444.57

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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.