Home / 180,759.70-249,444.06-100,185.49

Finding the Fourth Proportional to 180,759.70, 249,444.06 and 100,185.49

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Solution

The fourth proportional to 180,759.70, 249,444.06 and 100,185.49 is: 138,253.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,759.70 : 249,444.06 = 100,185.49 : x
  2. Step 2: Convert to fraction form
    180,759.70/249,444.06 = 100,185.49/x
  3. Step 3: Cross multiply
    180,759.70x = 249,444.06 × 100,185.49
  4. Step 4: Simplify right side
    180,759.70x = 24,990,675,314.80
  5. Step 5: Solve for x
    x = 24,990,675,314.80/180,759.70
  6. Step 6: Final answer
    x = 138,253.58

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1.5x scale

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.