Home / 99,790.23-137,710.50-68,014.62

Finding the Fourth Proportional to 99,790.23, 137,710.50 and 68,014.62

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Solution

The fourth proportional to 99,790.23, 137,710.50 and 68,014.62 is: 93,860.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,790.23 : 137,710.50 = 68,014.62 : x
  2. Step 2: Convert to fraction form
    99,790.23/137,710.50 = 68,014.62/x
  3. Step 3: Cross multiply
    99,790.23x = 137,710.50 × 68,014.62
  4. Step 4: Simplify right side
    99,790.23x = 9,366,327,327.51
  5. Step 5: Solve for x
    x = 9,366,327,327.51/99,790.23
  6. Step 6: Final answer
    x = 93,860.16

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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.