Home / 282,141.38-423,236.70-71,779.32

Finding the Fourth Proportional to 282,141.38, 423,236.70 and 71,779.32

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Solution

The fourth proportional to 282,141.38, 423,236.70 and 71,779.32 is: 107,675.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,141.38 : 423,236.70 = 71,779.32 : x
  2. Step 2: Convert to fraction form
    282,141.38/423,236.70 = 71,779.32/x
  3. Step 3: Cross multiply
    282,141.38x = 423,236.70 × 71,779.32
  4. Step 4: Simplify right side
    282,141.38x = 30,379,642,525.04
  5. Step 5: Solve for x
    x = 30,379,642,525.04/282,141.38
  6. Step 6: Final answer
    x = 107,675.25

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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.