Home / 191,982.30-287,584.65-108,779.10

Finding the Fourth Proportional to 191,982.30, 287,584.65 and 108,779.10

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Solution

The fourth proportional to 191,982.30, 287,584.65 and 108,779.10 is: 162,948.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,982.30 : 287,584.65 = 108,779.10 : x
  2. Step 2: Convert to fraction form
    191,982.30/287,584.65 = 108,779.10/x
  3. Step 3: Cross multiply
    191,982.30x = 287,584.65 × 108,779.10
  4. Step 4: Simplify right side
    191,982.30x = 31,283,199,400.82
  5. Step 5: Solve for x
    x = 31,283,199,400.82/191,982.30
  6. Step 6: Final answer
    x = 162,948.35

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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.