Home / 149,709.80-206,607.30-86,053.52

Finding the Fourth Proportional to 149,709.80, 206,607.30 and 86,053.52

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Solution

The fourth proportional to 149,709.80, 206,607.30 and 86,053.52 is: 118,758.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,709.80 : 206,607.30 = 86,053.52 : x
  2. Step 2: Convert to fraction form
    149,709.80/206,607.30 = 86,053.52/x
  3. Step 3: Cross multiply
    149,709.80x = 206,607.30 × 86,053.52
  4. Step 4: Simplify right side
    149,709.80x = 17,779,285,422.70
  5. Step 5: Solve for x
    x = 17,779,285,422.70/149,709.80
  6. Step 6: Final answer
    x = 118,758.33

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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.