Home / 180,895.56-249,623.46-100,315.50

Finding the Fourth Proportional to 180,895.56, 249,623.46 and 100,315.50

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Solution

The fourth proportional to 180,895.56, 249,623.46 and 100,315.50 is: 138,428.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,895.56 : 249,623.46 = 100,315.50 : x
  2. Step 2: Convert to fraction form
    180,895.56/249,623.46 = 100,315.50/x
  3. Step 3: Cross multiply
    180,895.56x = 249,623.46 × 100,315.50
  4. Step 4: Simplify right side
    180,895.56x = 25,041,102,201.63
  5. Step 5: Solve for x
    x = 25,041,102,201.63/180,895.56
  6. Step 6: Final answer
    x = 138,428.51

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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.