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Finding the Fourth Proportional to 96,689.12, 144,990.86 and 51,699.56

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Solution

The fourth proportional to 96,689.12, 144,990.86 and 51,699.56 is: 77,526.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,689.12 : 144,990.86 = 51,699.56 : x
  2. Step 2: Convert to fraction form
    96,689.12/144,990.86 = 51,699.56/x
  3. Step 3: Cross multiply
    96,689.12x = 144,990.86 × 51,699.56
  4. Step 4: Simplify right side
    96,689.12x = 7,495,962,682.57
  5. Step 5: Solve for x
    x = 7,495,962,682.57/96,689.12
  6. Step 6: Final answer
    x = 77,526.44

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1.5x scale

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.