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Finding the Fourth Proportional to 99,365.34, 137,070.94 and 69,098.12

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Solution

The fourth proportional to 99,365.34, 137,070.94 and 69,098.12 is: 95,318.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,365.34 : 137,070.94 = 69,098.12 : x
  2. Step 2: Convert to fraction form
    99,365.34/137,070.94 = 69,098.12/x
  3. Step 3: Cross multiply
    99,365.34x = 137,070.94 × 69,098.12
  4. Step 4: Simplify right side
    99,365.34x = 9,471,344,260.63
  5. Step 5: Solve for x
    x = 9,471,344,260.63/99,365.34
  6. Step 6: Final answer
    x = 95,318.39

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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.