Home / 180,857.28-249,586.02-100,288.20

Finding the Fourth Proportional to 180,857.28, 249,586.02 and 100,288.20

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Solution

The fourth proportional to 180,857.28, 249,586.02 and 100,288.20 is: 138,399.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,857.28 : 249,586.02 = 100,288.20 : x
  2. Step 2: Convert to fraction form
    180,857.28/249,586.02 = 100,288.20/x
  3. Step 3: Cross multiply
    180,857.28x = 249,586.02 × 100,288.20
  4. Step 4: Simplify right side
    180,857.28x = 25,030,532,690.96
  5. Step 5: Solve for x
    x = 25,030,532,690.96/180,857.28
  6. Step 6: Final answer
    x = 138,399.36

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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.