Home / 112,156,815.20-168,235,222.80-61,138,479.20

Finding the Fourth Proportional to 112,156,815.20, 168,235,222.80 and 61,138,479.20

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Solution

The fourth proportional to 112,156,815.20, 168,235,222.80 and 61,138,479.20 is: 91,707,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,156,815.20 : 168,235,222.80 = 61,138,479.20 : x
  2. Step 2: Convert to fraction form
    112,156,815.20/168,235,222.80 = 61,138,479.20/x
  3. Step 3: Cross multiply
    112,156,815.20x = 168,235,222.80 × 61,138,479.20
  4. Step 4: Simplify right side
    112,156,815.20x = 10,285,645,669,865,166
  5. Step 5: Solve for x
    x = 10,285,645,669,865,166/112,156,815.20
  6. Step 6: Final answer
    x = 91,707,718.80

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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.