Home / 99,498.14-137,317.12-74,303.90

Finding the Fourth Proportional to 99,498.14, 137,317.12 and 74,303.90

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Solution

The fourth proportional to 99,498.14, 137,317.12 and 74,303.90 is: 102,546.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,498.14 : 137,317.12 = 74,303.90 : x
  2. Step 2: Convert to fraction form
    99,498.14/137,317.12 = 74,303.90/x
  3. Step 3: Cross multiply
    99,498.14x = 137,317.12 × 74,303.90
  4. Step 4: Simplify right side
    99,498.14x = 10,203,197,552.77
  5. Step 5: Solve for x
    x = 10,203,197,552.77/99,498.14
  6. Step 6: Final answer
    x = 102,546.62

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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.