Home / 180,806.40-249,489.78-100,233.18

Finding the Fourth Proportional to 180,806.40, 249,489.78 and 100,233.18

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Solution

The fourth proportional to 180,806.40, 249,489.78 and 100,233.18 is: 138,309.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,806.40 : 249,489.78 = 100,233.18 : x
  2. Step 2: Convert to fraction form
    180,806.40/249,489.78 = 100,233.18/x
  3. Step 3: Cross multiply
    180,806.40x = 249,489.78 × 100,233.18
  4. Step 4: Simplify right side
    180,806.40x = 25,007,154,026.90
  5. Step 5: Solve for x
    x = 25,007,154,026.90/180,806.40
  6. Step 6: Final answer
    x = 138,309.01

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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.