Home / 180,922.80-249,703.36-100,376.28

Finding the Fourth Proportional to 180,922.80, 249,703.36 and 100,376.28

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Solution

The fourth proportional to 180,922.80, 249,703.36 and 100,376.28 is: 138,535.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,922.80 : 249,703.36 = 100,376.28 : x
  2. Step 2: Convert to fraction form
    180,922.80/249,703.36 = 100,376.28/x
  3. Step 3: Cross multiply
    180,922.80x = 249,703.36 × 100,376.28
  4. Step 4: Simplify right side
    180,922.80x = 25,064,294,380.30
  5. Step 5: Solve for x
    x = 25,064,294,380.30/180,922.80
  6. Step 6: Final answer
    x = 138,535.85

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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.