Home / 111,611.08-154,006.98-63,855.40

Finding the Fourth Proportional to 111,611.08, 154,006.98 and 63,855.40

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Solution

The fourth proportional to 111,611.08, 154,006.98 and 63,855.40 is: 88,111.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,611.08 : 154,006.98 = 63,855.40 : x
  2. Step 2: Convert to fraction form
    111,611.08/154,006.98 = 63,855.40/x
  3. Step 3: Cross multiply
    111,611.08x = 154,006.98 × 63,855.40
  4. Step 4: Simplify right side
    111,611.08x = 9,834,177,310.69
  5. Step 5: Solve for x
    x = 9,834,177,310.69/111,611.08
  6. Step 6: Final answer
    x = 88,111.12

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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.