Home / 102,611.08-153,741.42-55,780.36

Finding the Fourth Proportional to 102,611.08, 153,741.42 and 55,780.36

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Solution

The fourth proportional to 102,611.08, 153,741.42 and 55,780.36 is: 83,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,611.08 : 153,741.42 = 55,780.36 : x
  2. Step 2: Convert to fraction form
    102,611.08/153,741.42 = 55,780.36/x
  3. Step 3: Cross multiply
    102,611.08x = 153,741.42 × 55,780.36
  4. Step 4: Simplify right side
    102,611.08x = 8,575,751,754.51
  5. Step 5: Solve for x
    x = 8,575,751,754.51/102,611.08
  6. Step 6: Final answer
    x = 83,575.30

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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.