Home / 180,695.29-249,359.25-100,128.03

Finding the Fourth Proportional to 180,695.29, 249,359.25 and 100,128.03

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Solution

The fourth proportional to 180,695.29, 249,359.25 and 100,128.03 is: 138,176.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,695.29 : 249,359.25 = 100,128.03 : x
  2. Step 2: Convert to fraction form
    180,695.29/249,359.25 = 100,128.03/x
  3. Step 3: Cross multiply
    180,695.29x = 249,359.25 × 100,128.03
  4. Step 4: Simplify right side
    180,695.29x = 24,967,850,464.78
  5. Step 5: Solve for x
    x = 24,967,850,464.78/180,695.29
  6. Step 6: Final answer
    x = 138,176.54

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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.