Home / 158,535.85-218,779.41-86,914.33

Finding the Fourth Proportional to 158,535.85, 218,779.41 and 86,914.33

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Solution

The fourth proportional to 158,535.85, 218,779.41 and 86,914.33 is: 119,941.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,535.85 : 218,779.41 = 86,914.33 : x
  2. Step 2: Convert to fraction form
    158,535.85/218,779.41 = 86,914.33/x
  3. Step 3: Cross multiply
    158,535.85x = 218,779.41 × 86,914.33
  4. Step 4: Simplify right side
    158,535.85x = 19,015,065,837.95
  5. Step 5: Solve for x
    x = 19,015,065,837.95/158,535.85
  6. Step 6: Final answer
    x = 119,941.74

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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.