Home / 99,438.03-137,230.61-57,002.94

Finding the Fourth Proportional to 99,438.03, 137,230.61 and 57,002.94

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Solution

The fourth proportional to 99,438.03, 137,230.61 and 57,002.94 is: 78,667.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,438.03 : 137,230.61 = 57,002.94 : x
  2. Step 2: Convert to fraction form
    99,438.03/137,230.61 = 57,002.94/x
  3. Step 3: Cross multiply
    99,438.03x = 137,230.61 × 57,002.94
  4. Step 4: Simplify right side
    99,438.03x = 7,822,547,942.98
  5. Step 5: Solve for x
    x = 7,822,547,942.98/99,438.03
  6. Step 6: Final answer
    x = 78,667.57

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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.