Home / 208,125.04-312,061.11-81,613.69

Finding the Fourth Proportional to 208,125.04, 312,061.11 and 81,613.69

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Solution

The fourth proportional to 208,125.04, 312,061.11 and 81,613.69 is: 122,370.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,125.04 : 312,061.11 = 81,613.69 : x
  2. Step 2: Convert to fraction form
    208,125.04/312,061.11 = 81,613.69/x
  3. Step 3: Cross multiply
    208,125.04x = 312,061.11 × 81,613.69
  4. Step 4: Simplify right side
    208,125.04x = 25,468,458,692.60
  5. Step 5: Solve for x
    x = 25,468,458,692.60/208,125.04
  6. Step 6: Final answer
    x = 122,370.95

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1.5x scale

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.