Home / 99,537.12-137,500.54-69,307.31

Finding the Fourth Proportional to 99,537.12, 137,500.54 and 69,307.31

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Solution

The fourth proportional to 99,537.12, 137,500.54 and 69,307.31 is: 95,741.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,537.12 : 137,500.54 = 69,307.31 : x
  2. Step 2: Convert to fraction form
    99,537.12/137,500.54 = 69,307.31/x
  3. Step 3: Cross multiply
    99,537.12x = 137,500.54 × 69,307.31
  4. Step 4: Simplify right side
    99,537.12x = 9,529,792,721.43
  5. Step 5: Solve for x
    x = 9,529,792,721.43/99,537.12
  6. Step 6: Final answer
    x = 95,741.09

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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.