Home / 99,550.20-137,376.90-57,106.02

Finding the Fourth Proportional to 99,550.20, 137,376.90 and 57,106.02

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Solution

The fourth proportional to 99,550.20, 137,376.90 and 57,106.02 is: 78,804.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,550.20 : 137,376.90 = 57,106.02 : x
  2. Step 2: Convert to fraction form
    99,550.20/137,376.90 = 57,106.02/x
  3. Step 3: Cross multiply
    99,550.20x = 137,376.90 × 57,106.02
  4. Step 4: Simplify right side
    99,550.20x = 7,845,047,998.94
  5. Step 5: Solve for x
    x = 7,845,047,998.94/99,550.20
  6. Step 6: Final answer
    x = 78,804.94

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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.