Home / 208,518.80-287,756.43-113,025.07

Finding the Fourth Proportional to 208,518.80, 287,756.43 and 113,025.07

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Solution

The fourth proportional to 208,518.80, 287,756.43 and 113,025.07 is: 155,974.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,518.80 : 287,756.43 = 113,025.07 : x
  2. Step 2: Convert to fraction form
    208,518.80/287,756.43 = 113,025.07/x
  3. Step 3: Cross multiply
    208,518.80x = 287,756.43 × 113,025.07
  4. Step 4: Simplify right side
    208,518.80x = 32,523,689,204.92
  5. Step 5: Solve for x
    x = 32,523,689,204.92/208,518.80
  6. Step 6: Final answer
    x = 155,974.85

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1.5x scale

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.