Home / 99,753.12-137,678.40-61,525.44

Finding the Fourth Proportional to 99,753.12, 137,678.40 and 61,525.44

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Solution

The fourth proportional to 99,753.12, 137,678.40 and 61,525.44 is: 84,916.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,753.12 : 137,678.40 = 61,525.44 : x
  2. Step 2: Convert to fraction form
    99,753.12/137,678.40 = 61,525.44/x
  3. Step 3: Cross multiply
    99,753.12x = 137,678.40 × 61,525.44
  4. Step 4: Simplify right side
    99,753.12x = 8,470,724,138.50
  5. Step 5: Solve for x
    x = 8,470,724,138.50/99,753.12
  6. Step 6: Final answer
    x = 84,916.88

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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.