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Finding the Fourth Proportional to 119,908.83, 179,881.01 and 39,920.67

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Solution

The fourth proportional to 119,908.83, 179,881.01 and 39,920.67 is: 59,886.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,908.83 : 179,881.01 = 39,920.67 : x
  2. Step 2: Convert to fraction form
    119,908.83/179,881.01 = 39,920.67/x
  3. Step 3: Cross multiply
    119,908.83x = 179,881.01 × 39,920.67
  4. Step 4: Simplify right side
    119,908.83x = 7,180,970,951.41
  5. Step 5: Solve for x
    x = 7,180,970,951.41/119,908.83
  6. Step 6: Final answer
    x = 59,886.92

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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.