Home / 180,771.84-249,480.07-100,224.63

Finding the Fourth Proportional to 180,771.84, 249,480.07 and 100,224.63

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Solution

The fourth proportional to 180,771.84, 249,480.07 and 100,224.63 is: 138,318.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,771.84 : 249,480.07 = 100,224.63 : x
  2. Step 2: Convert to fraction form
    180,771.84/249,480.07 = 100,224.63/x
  3. Step 3: Cross multiply
    180,771.84x = 249,480.07 × 100,224.63
  4. Step 4: Simplify right side
    180,771.84x = 25,004,047,457.56
  5. Step 5: Solve for x
    x = 25,004,047,457.56/180,771.84
  6. Step 6: Final answer
    x = 138,318.27

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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.