Home / 99,365.04-137,211.48-67,609.80

Finding the Fourth Proportional to 99,365.04, 137,211.48 and 67,609.80

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Solution

The fourth proportional to 99,365.04, 137,211.48 and 67,609.80 is: 93,361.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,365.04 : 137,211.48 = 67,609.80 : x
  2. Step 2: Convert to fraction form
    99,365.04/137,211.48 = 67,609.80/x
  3. Step 3: Cross multiply
    99,365.04x = 137,211.48 × 67,609.80
  4. Step 4: Simplify right side
    99,365.04x = 9,276,840,720.50
  5. Step 5: Solve for x
    x = 9,276,840,720.50/99,365.04
  6. Step 6: Final answer
    x = 93,361.21

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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.