Home / 131,503.04-181,423.20-83,747.84

Finding the Fourth Proportional to 131,503.04, 181,423.20 and 83,747.84

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Solution

The fourth proportional to 131,503.04, 181,423.20 and 83,747.84 is: 115,539.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,503.04 : 181,423.20 = 83,747.84 : x
  2. Step 2: Convert to fraction form
    131,503.04/181,423.20 = 83,747.84/x
  3. Step 3: Cross multiply
    131,503.04x = 181,423.20 × 83,747.84
  4. Step 4: Simplify right side
    131,503.04x = 15,193,801,125.89
  5. Step 5: Solve for x
    x = 15,193,801,125.89/131,503.04
  6. Step 6: Final answer
    x = 115,539.54

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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.