Home / 99,354.93-137,106.75-56,338.37

Finding the Fourth Proportional to 99,354.93, 137,106.75 and 56,338.37

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Solution

The fourth proportional to 99,354.93, 137,106.75 and 56,338.37 is: 77,745.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,354.93 : 137,106.75 = 56,338.37 : x
  2. Step 2: Convert to fraction form
    99,354.93/137,106.75 = 56,338.37/x
  3. Step 3: Cross multiply
    99,354.93x = 137,106.75 × 56,338.37
  4. Step 4: Simplify right side
    99,354.93x = 7,724,370,125.46
  5. Step 5: Solve for x
    x = 7,724,370,125.46/99,354.93
  6. Step 6: Final answer
    x = 77,745.21

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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.