Home / 180,874.06-249,618.99-100,309.30

Finding the Fourth Proportional to 180,874.06, 249,618.99 and 100,309.30

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Solution

The fourth proportional to 180,874.06, 249,618.99 and 100,309.30 is: 138,433.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,874.06 : 249,618.99 = 100,309.30 : x
  2. Step 2: Convert to fraction form
    180,874.06/249,618.99 = 100,309.30/x
  3. Step 3: Cross multiply
    180,874.06x = 249,618.99 × 100,309.30
  4. Step 4: Simplify right side
    180,874.06x = 25,039,106,153.61
  5. Step 5: Solve for x
    x = 25,039,106,153.61/180,874.06
  6. Step 6: Final answer
    x = 138,433.93

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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.