Home / 180,946.63-249,736.29-100,400.11

Finding the Fourth Proportional to 180,946.63, 249,736.29 and 100,400.11

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Solution

The fourth proportional to 180,946.63, 249,736.29 and 100,400.11 is: 138,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,946.63 : 249,736.29 = 100,400.11 : x
  2. Step 2: Convert to fraction form
    180,946.63/249,736.29 = 100,400.11/x
  3. Step 3: Cross multiply
    180,946.63x = 249,736.29 × 100,400.11
  4. Step 4: Simplify right side
    180,946.63x = 25,073,550,986.99
  5. Step 5: Solve for x
    x = 25,073,550,986.99/180,946.63
  6. Step 6: Final answer
    x = 138,568.76

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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.