Home / 99,318.74-137,089.87-67,506.05

Finding the Fourth Proportional to 99,318.74, 137,089.87 and 67,506.05

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Solution

The fourth proportional to 99,318.74, 137,089.87 and 67,506.05 is: 93,178.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,318.74 : 137,089.87 = 67,506.05 : x
  2. Step 2: Convert to fraction form
    99,318.74/137,089.87 = 67,506.05/x
  3. Step 3: Cross multiply
    99,318.74x = 137,089.87 × 67,506.05
  4. Step 4: Simplify right side
    99,318.74x = 9,254,395,792.67
  5. Step 5: Solve for x
    x = 9,254,395,792.67/99,318.74
  6. Step 6: Final answer
    x = 93,178.75

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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.