Home / 247,406.07-371,169.54-78,926.40

Finding the Fourth Proportional to 247,406.07, 371,169.54 and 78,926.40

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Solution

The fourth proportional to 247,406.07, 371,169.54 and 78,926.40 is: 118,408.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,406.07 : 371,169.54 = 78,926.40 : x
  2. Step 2: Convert to fraction form
    247,406.07/371,169.54 = 78,926.40/x
  3. Step 3: Cross multiply
    247,406.07x = 371,169.54 × 78,926.40
  4. Step 4: Simplify right side
    247,406.07x = 29,295,075,581.86
  5. Step 5: Solve for x
    x = 29,295,075,581.86/247,406.07
  6. Step 6: Final answer
    x = 118,408.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.