Home / 120,176.84-180,251.48-31,438.92

Finding the Fourth Proportional to 120,176.84, 180,251.48 and 31,438.92

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Solution

The fourth proportional to 120,176.84, 180,251.48 and 31,438.92 is: 47,154.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,176.84 : 180,251.48 = 31,438.92 : x
  2. Step 2: Convert to fraction form
    120,176.84/180,251.48 = 31,438.92/x
  3. Step 3: Cross multiply
    120,176.84x = 180,251.48 × 31,438.92
  4. Step 4: Simplify right side
    120,176.84x = 5,666,911,859.60
  5. Step 5: Solve for x
    x = 5,666,911,859.60/120,176.84
  6. Step 6: Final answer
    x = 47,154.78

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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.