Home / 136,880.92-188,876.98-76,443.85

Finding the Fourth Proportional to 136,880.92, 188,876.98 and 76,443.85

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Solution

The fourth proportional to 136,880.92, 188,876.98 and 76,443.85 is: 105,482.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,880.92 : 188,876.98 = 76,443.85 : x
  2. Step 2: Convert to fraction form
    136,880.92/188,876.98 = 76,443.85/x
  3. Step 3: Cross multiply
    136,880.92x = 188,876.98 × 76,443.85
  4. Step 4: Simplify right side
    136,880.92x = 14,438,483,859.22
  5. Step 5: Solve for x
    x = 14,438,483,859.22/136,880.92
  6. Step 6: Final answer
    x = 105,482.08

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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.