Home / 180,947.89-249,738.02-100,401.35

Finding the Fourth Proportional to 180,947.89, 249,738.02 and 100,401.35

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Solution

The fourth proportional to 180,947.89, 249,738.02 and 100,401.35 is: 138,570.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,947.89 : 249,738.02 = 100,401.35 : x
  2. Step 2: Convert to fraction form
    180,947.89/249,738.02 = 100,401.35/x
  3. Step 3: Cross multiply
    180,947.89x = 249,738.02 × 100,401.35
  4. Step 4: Simplify right side
    180,947.89x = 25,074,034,354.33
  5. Step 5: Solve for x
    x = 25,074,034,354.33/180,947.89
  6. Step 6: Final answer
    x = 138,570.47

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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.